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[文章] 公路隧道视距曲线半径的探讨 [复制链接]

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  µ›_–è y~bbs.3c3t.comð·ßom0€v¨A
韩熠1µ›_–è y~bbs.3c3t.comð·ßom0€v¨A
王跟民2
µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

( 1.陕西交通技术咨询有限公司,陕西 西安 710068;µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

2.陕西省林业勘察设计院,陕西西安 710082;)µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

[摘  要]本文概略分析了影响隧道视距的因素,计算了隧道横净距,建立了隧道视距曲线半径的概念,提出了隧道线形设计和改善交通安全的建议。µ›_–è y~bbs.3c3t.comð·ßom0€v¨A
[关键词]隧道  横净距  视距半径  加宽µ›_–è y~bbs.3c3t.comð·ßom0€v¨A
1、视距影响因素及隧道建筑限界µ›_–è y~bbs.3c3t.comð·ßom0€v¨A
公路隧道几何设计、车辆几何尺寸、驾驶员、照明及自然环境、交通组成等因素,均影响隧道视距,几何设计主要包括隧道建筑限界、内轮廓、平纵线形、路拱等。为便于讨论,依据《公路工程技术标准》(JTG B01-2003)、《公路隧道设计规范》(JTG D70-2004)和《公路项目安全性评价指南》(JTG B05-2004)(分别简称《标准》、《规范》、《指南》),限定相关边界。高速公路和一级公路隧道建筑限界及横断面组成尺寸见表1,二级以下公路隧道建筑限界及横断面组成尺寸见表2µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

表1µ›_–è y~bbs.3c3t.comð·ßom0€v¨A
µ›_–è y~bbs.3c3t.comð·ßom0€v¨A
高速、一级公路隧道建筑限界横断面组成一览表(单位:米)µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

 

序号µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

设计速度(km/h)µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

车道宽度Wµ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

侧向宽度Lµ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

最小检修道Jµ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

建筑限界净空µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

 

左侧LLµ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

右侧LRµ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

左侧µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

右侧µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

净宽µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

净高µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

 
 

1µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

120µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

3.75×2µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

0.75 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

1.25 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

0.75 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

0.75 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

11.00 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

5.00 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

 

2µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

100µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

3.75×2µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

0.50 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

1.00 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

0.75 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

0.75 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

10.50 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

5.00 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

 

3µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

80µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

3.75×2µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

0.50 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

0.75 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

0.75 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

0.75 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

10.25 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

5.00 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

 

4µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

60µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

3.75×2µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

0.50 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

0.75 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

0.75 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

0.75 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

9.75 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

5.00 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

 

表2µ›_–è y~bbs.3c3t.comð·ßom0€v¨A
二级以下等级公路隧道建筑限界横断面组成一览表(单位:米)µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

 

序号µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

设计速度(km/h)µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

车道宽度Wµ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

侧向宽度Lµ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

最小人行道Jµ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

建筑限界净空µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

 

左侧LLµ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

右侧LRµ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

左侧µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

右侧µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

净宽µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

净高µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

 
 

1µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

80二级µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

3.75×2µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

0.75 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

0.75 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

0.75 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

0.75 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

10.50 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

5.00 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

 

2µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

60二级µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

3.50×2µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

0.50 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

0.50 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

0.75 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

0.75 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

9.50 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

5.00 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

 

3µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

40二级µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

3.50×2µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

0.25 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

0.25 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

0.75 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

0.75 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

9.00 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

5.00 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

 

4µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

40三级µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

3.50×2µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

0.25 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

0.25 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

0.75 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

0.75 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

9.00 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

4.50 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

 

5µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

30三级µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

3.25×2µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

0.25 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

0.25 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

0.25 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

0.25 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

7.50 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

4.50 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

 

6µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

20四级µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

3.00×2µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

0.50 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

0.50 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

0.25 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

0.25 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

7.50 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

4.50 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

 
µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

二级公路设计速度为8060公里/小时,隧道内人行道(兼检修道)最小宽度为1.0,净宽分别为1110,大于《标准》中最小规定值,本文采用《规范》规定值;四级公路,隧道建筑限界净宽为7.0,小于《标准》规定最小值,本文采用《标准》7.5的建筑限界。µ›_–è y~bbs.3c3t.comð·ßom0€v¨A
2、标准车型与视距µ›_–è y~bbs.3c3t.comð·ßom0€v¨A
计算车型分别选择小客车和货车,小客车宽度B1.8,货车宽度B2.5,驾驶员位于车辆左侧0.5处。前方障碍物高均为0.1。停车视距以小客车为标准,目高为1.2,自驾驶员发现障碍物起,至车辆在障碍物前安全停止,所需的最短行车距离即为小客车停车视距,简称停车视距。计算货车停车视距时,驾驶员目高为2.0。若运行速度大小与设计速度相等,依据《标准》和《指南》规定,停车视距和货车停车视距规定见表3和表4所示。µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

表3µ›_–è y~bbs.3c3t.comð·ßom0€v¨A
µ›_–è y~bbs.3c3t.comð·ßom0€v¨A
µ›_–è y~bbs.3c3t.comð·ßom0€v¨A
µ›_–è y~bbs.3c3t.comð·ßom0€v¨A
高速、一级公路停车视距及货车停车视距(单位:米)µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

序号µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

设计速度µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

标准停车视距µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

指南停车视距µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

标准货车µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

停车视距µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

指南货车µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

停车视距µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

《标准》修正停车货车视距µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

3µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

4µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

5%µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

6%µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

7µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

8µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

9µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

1µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

120µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

210µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

280µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

245µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

417µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

265µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

273µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

--µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

--µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

2µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

100µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

160µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

205µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

180µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

301µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

190µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

195µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

200µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

--µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

3µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

80µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

110µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

140µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

125µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

202µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

130µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

132µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

136µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

139µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

4µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

60µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

75µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

90µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

85µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

120µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

89µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

91µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

93µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

95µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

表4µ›_–è y~bbs.3c3t.comð·ßom0€v¨A
µ›_–è y~bbs.3c3t.comð·ßom0€v¨A
二、三、四级公路停车视距及货车停车视距(单位:米)
µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

序号µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

设计速度µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

标准停车视距µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

指南停车视距µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

标准货车µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

停车视距µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

指南货车µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

停车视距µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

《标准》下坡修正停车货车视距µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

3µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

4µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

5%µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

6%µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

7µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

8µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

9µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

1µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

80µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

110µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

140µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

125µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

202µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

130µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

132µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

136µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

139µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

2µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

60µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

75µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

90µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

85µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

120µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

89µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

91µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

93µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

95µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

3µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

40µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

40µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

--µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

50µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

--µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

50µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

50µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

50µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

50µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

50µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

4µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

30µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

30µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

--µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

35µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

--µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

35µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

35µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

35µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

35µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

35µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

35µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

5µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

20µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

20µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

--µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

20µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

--µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

20µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

20µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

20µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

20µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

20µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

20µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

20µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

《指南》修正了货车停车视距,纵坡大于2%,半径小于400路段,应核查修正。上坡路段可以减小货车停车视距,下坡路段必须增大货车停车视距。µ›_–è y~bbs.3c3t.comð·ßom0€v¨A
3、公路隧道横净距µ›_–è y~bbs.3c3t.comð·ßom0€v¨A
当检修道(人行道,下同)高度大于0.1,或检修道高度影响视线时,横净距(m1)应计算到检修道边缘;当隧道内壁布设有关设施影响视线时,横净距(m2)应计算至建筑限界边缘处;当隧道内壁未布设隧道设施或不影响视线时,横净距(m3)可计算至隧道内轮廓处。无论车辆在那个车道行驶,均假定车辆行驶轨迹与车道中心线重合,并假定视高处建筑限界至内轮廓距离为0.25。依行驶方向为准,左转弯曲线隧道应计算左车道横净距,右转弯曲线应计算右车道横净距。µ›_–è y~bbs.3c3t.comð·ßom0€v¨A
左车道横净距m(W/2B)/20.5L[J0.25]µ›_–è y~bbs.3c3t.comð·ßom0€v¨A
………………………3-1µ›_–è y~bbs.3c3t.comð·ßom0€v¨A
右车道横净距m(W/2B)/20.5L[J0.25]µ›_–è y~bbs.3c3t.comð·ßom0€v¨A
………………………3-2µ›_–è y~bbs.3c3t.comð·ßom0€v¨A
隧道提供的最大横净距计算结果见表5。左侧车道横净距小于右侧车道横净距,左转弯曲线隧道较右转弯曲线隧道不利于安全;左转弯隧道,为小客车提供的横净距大于为货车提供的横净距;右转弯曲线隧道,为小客车提供的横净距小于为货车提供的横净距。µ›_–è y~bbs.3c3t.comð·ßom0€v¨A
表5µ›_–è y~bbs.3c3t.comð·ßom0€v¨A
µ›_–è y~bbs.3c3t.comð·ßom0€v¨A
公路隧道提供的最大横净距(单位:m)
µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

设计速度µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

m1µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

m2µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

m3µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

左侧车道µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

右侧车道µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

左侧车道µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

右侧车道µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

左侧车道µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

右侧车道µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

小车µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

货车µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

小车µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

货车µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

小车µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

货车µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

小车µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

货车µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

小车µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

货车µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

小车µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

货车µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

120µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

2.225 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

1.875 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

3.525 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

3.875 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

2.975 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

2.625 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

4.275 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

4.625 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

3.225 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

2.875 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

4.525 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

4.875 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

100µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

1.975 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

1.625 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

3.275 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

3.625 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

2.725 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

2.375 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

4.025 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

4.375 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

2.975 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

2.625 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

4.275 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

4.625 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

80µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

1.975 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

1.625 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

3.025 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

3.375 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

2.725 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

2.375 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

3.775 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

4.125 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

2.975 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

2.625 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

4.025 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

4.375 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

60µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

1.975 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

1.625 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

3.025 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

3.375 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

2.725 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

2.375 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

3.775 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

4.125 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

2.975 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

2.625 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

4.025 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

4.375 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

80µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

2.225 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

1.875 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

3.025 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

3.375 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

3.225 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

2.875 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

4.025 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

4.375 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

3.475 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

3.125 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

4.275 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

4.625 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

60µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

1.850 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

1.500 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

2.650 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

3.000 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

2.850 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

2.500 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

3.650 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

4.000 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

3.100 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

2.750 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

3.900 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

4.250 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

40µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

1.600 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

1.250 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

2.400 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

2.750 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

2.350 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

2.000 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

3.150 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

3.500 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

2.600 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

2.250 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

3.400 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

3.750 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

40µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

1.600 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

1.250 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

2.400 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

2.750 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

2.350 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

2.000 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

3.150 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

3.500 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

2.600 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

2.250 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

3.400 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

3.750 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

30µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

1.475 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

1.125 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

2.275 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

2.625 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

1.725 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

1.375 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

2.525 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

2.875 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

1.975 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

1.625 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

2.775 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

3.125 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

20µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

1.600 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

1.250 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

2.400 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

2.750 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

1.850 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

1.500 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

2.650 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

3.000 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

2.100 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

1.750 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

2.900 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

3.250 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

4、隧道视距平曲线半径µ›_–è y~bbs.3c3t.comð·ßom0€v¨A
假定曲线隧道位于同一曲率半径的圆曲线上,曲率半径与视距、横净距的关系式为:µ›_–è y~bbs.3c3t.comð·ßom0€v¨A
 ……………………………4-1µ›_–è y~bbs.3c3t.comð·ßom0€v¨A
式中: —实际横净距,米;µ›_–è y~bbs.3c3t.comð·ßom0€v¨A
      —计算车道中线处的曲线半径,米;µ›_–è y~bbs.3c3t.comð·ßom0€v¨A
—(货车)停车视距,米。µ›_–è y~bbs.3c3t.comð·ßom0€v¨A
依据cosα=1-α2/2!+α4/4!-……+(-1)nα2n/(2n)!,由公式4-1推导简化公式得4-2,可直接计算平曲线半径。两公式计算很相近,后者比前者一般大0.30.5,误差可以忽略。µ›_–è y~bbs.3c3t.comð·ßom0€v¨A
………………………………………4-2µ›_–è y~bbs.3c3t.comð·ßom0€v¨A
隧道提供横净距越小,要求平曲线半径越大,比照路线规范,视距采用《标准》规定视距,可将检修道(m1)对应的曲率半径R1定义为隧道安全视距半径,将建筑限界(m2)对应曲率半径R2定义为隧道一般视距半径,将隧道内轮廓(m3)对应的曲率半径R3定义为隧道最小视距半径。µ›_–è y~bbs.3c3t.comð·ßom0€v¨A
高速公路、一级公路为分离式单向行驶,只需考虑制动停车视距。双向行驶的二、三、四级公路,隧道路段一般禁止超车,也只考虑停车视距。表6显示货车视距半径一般大于小客车视距半径,拟定隧道曲线半径时,应采用货车视距曲线半径,但应区分左、右转弯曲线。同时考虑《指南》视距要求,确定隧道线形时,应参照表7拟定平面参数。µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

表6µ›_–è y~bbs.3c3t.comð·ßom0€v¨A
µ›_–è y~bbs.3c3t.comð·ßom0€v¨A
公路隧道视距平曲线半径计算值(单位:米)
µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

设计速度µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

安全视距半径R1µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

一般视距半径R2µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

最小视距半径R3µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

左侧车道µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

右侧车道µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

左侧车道µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

右侧车道µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

左侧车道µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

右侧车道µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

小车µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

货车µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

小车µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

货车µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

小车µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

货车µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

小车µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

货车µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

小车µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

货车µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

小车µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

货车µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

120µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

2478µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

4002µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

1564µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

1936µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

1853µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

2858µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

1289µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

1622µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

1709µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

2610µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

1218µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

1539µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

100µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

1620µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

2492µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

977µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

1117µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

1174µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

1705µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

795µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

926µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

1076µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

1543µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

749µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

876µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

80µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

766µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

1202µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

500µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

579µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

555µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

822µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

401µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

473µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

508µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

744µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

376µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

446µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

60µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

356µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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556µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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232µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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268µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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258µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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380µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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186µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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219µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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236µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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344µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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175µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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206µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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80µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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680µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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1042µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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500µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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579µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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469µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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679µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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376µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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446µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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435µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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625µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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354µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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422µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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60µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

380µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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602µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

265µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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301µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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247µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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361µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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193µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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226µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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227µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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328µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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180µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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213µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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40µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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125µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

250µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

83µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

114µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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85µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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156µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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63µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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89µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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77µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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139µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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59µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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83µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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40µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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125µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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250µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

83µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

114µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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85µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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156µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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63µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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89µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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77µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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139µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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59µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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83µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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30µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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76µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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136µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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49µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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58µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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65µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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111µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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45µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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53µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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57µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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94µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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41µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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49µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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20µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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31µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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40µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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21µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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18µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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27µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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33µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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19µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

17µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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24µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

29µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

17µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

15µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

表7 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A
µ›_–è y~bbs.3c3t.comð·ßom0€v¨A
公路隧道视距平曲线半径建议值(单位:m)
µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

设计速度µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

安全视距半径R1µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

一般视距半径R2µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

最小视距半径R3µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

左偏曲线µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

右偏曲线µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

左偏曲线µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

右偏曲线µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

左偏曲线µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

右偏曲线µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

标准µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

指南µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

标准µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

指南µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

标准µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

指南µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

标准µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

指南µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

标准µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

指南µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

标准µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

指南µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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120µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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4005µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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11600µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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1940µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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5610µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

2860µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

8285µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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1625µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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4705µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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2615µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

7565µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

1545µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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4460µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

100µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

2495µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

6975µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

1120µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

3125µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

1710µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

4770µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

930µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

2590µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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1545µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

4315µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

880µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

2450µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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35µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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5、隧道断面加宽µ›_–è y~bbs.3c3t.comð·ßom0€v¨A
隧道平曲线半径小于最小视距半径R3时,应采取措施加大隧道横净距。若线形改善困难时,应加大隧道断面尺寸或调整断面布设。若按《规范》设置了超高值不大于4%的平曲线,右转弯隧道横净距均满足视距要求,左转弯隧道应加大左侧横净距,加宽参考值见表8所示。表中0.551.65分别为80100公里/小时的最大加宽值。µ›_–è y~bbs.3c3t.comð·ßom0€v¨A
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8µ›_–è y~bbs.3c3t.comð·ßom0€v¨A
曲线隧道横净距加宽参考表 (单位:米)µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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0.75(0.55)µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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120µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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625µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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620µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

--µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

--µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

--µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

--µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

60µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

350µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

--µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

--µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

--µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

--µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

--µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

--µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

--µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

6、纵坡路段视距平曲线半径µ›_–è y~bbs.3c3t.comð·ßom0€v¨A
前面计算的平曲线视距半径,应为路线纵坡小于2%的视距平曲线半径。当行驶方向为上坡时,有助于车辆制动,当行驶方向为下坡时,加大了制动距离。《标准》修正了3%、4%、5%、6%的下坡路段货车停车视距,《指南》修正了2%、4%、6%的上、下坡货车停车视距。暂且只讨论高速公路和一级公路,且线性增加不同坡度修正值,不考虑路线上坡影响。下坡路段货车停车视距修正值见表9所示。依据《标准》和《指南》修正视距计算出的视距半径见表10和表11所示。µ›_–è y~bbs.3c3t.comð·ßom0€v¨A
9µ›_–è y~bbs.3c3t.comð·ßom0€v¨A
µ›_–è y~bbs.3c3t.comð·ßom0€v¨A
µ›_–è y~bbs.3c3t.comð·ßom0€v¨A
纵坡路段货车停车视距修正值(单位:米)µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

设计速度µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

平坡路段µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

2µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

3µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

4µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

5µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

6µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

标准µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

指南µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

标准µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

指南µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

标准µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

指南µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

标准µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

指南µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

标准µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

指南µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

标准µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

指南µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

120µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

245µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

417µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

12µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

66µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

20µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

85µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

28µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

101µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

100µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

180µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

301µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

5µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

46µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

10µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

59µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

15µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

71µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

20µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

112µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

80µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

125µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

202µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

3µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

30µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

5µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

39µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

7µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

46µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

11µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

64µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

14µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

81µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

60µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

85µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

120µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

2µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

17µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

4µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

22µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

6µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

26µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

8µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

36µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

10µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

45µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A
10µ›_–è y~bbs.3c3t.comð·ßom0€v¨A
《标准》纵坡修正后的视距半径表µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

设计速度(km/h)µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

2%µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

3%µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

4%µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

5%µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

6%µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

左偏µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

右偏µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

左偏µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

右偏µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

左偏µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

右偏µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

左偏µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

右偏µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

左偏µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

右偏µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

R1µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

120 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

4403 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

2131 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

4682 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

2265 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

4969 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

2404 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A
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100 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

2633 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

1180 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

2777 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

1245 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

2925 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

1311 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

3077 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

1379 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A
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80 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

1260 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

607 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

1300 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

626 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

1340 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

645 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

1423 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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4468µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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2151 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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4731µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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2278 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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5443µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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2621 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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6161 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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60 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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1551µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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747 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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1640 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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789 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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1872µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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2094 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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120 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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6305 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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12000µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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7252 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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6337 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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3440 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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6821µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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3703 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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7283 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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3954 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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8977 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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4873 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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80 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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2833 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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1631 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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3057µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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1760 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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3237 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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1864 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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3724 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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2144 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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4215 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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2427 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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60 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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988 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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569 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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1061µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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611 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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1122 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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646 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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1281 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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737 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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1433 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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825 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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120 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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10143 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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5982 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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10957 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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6462 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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6880 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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100 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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5734 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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3254 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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6171 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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3503 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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6590 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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3740 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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8122µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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4610 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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2563 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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1538 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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3369µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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2022 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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1296 µ›_–è y~bbs.3c3t.comð·ßom0€v¨A

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7、竖曲线视距半径µ›_–è y~bbs.3c3t.comð·ßom0€v¨A
视距为竖曲线上的一段圆弧,视点(眼睛)与障碍物顶部的直线距离,可简称为视线距离,因竖曲线半径一般很大,往往是平曲线的很多倍,可以认为视距与视线距离相等。凸型竖曲线可能成为视线障碍,凹型竖曲线可能成为车灯的障碍,设置照明的隧道可不考虑凹型竖曲线的影响。µ›_–è y~bbs.3c3t.comð·ßom0€v¨A
设眼睛视点高度为a,障碍物高度为b,经求证竖曲线的视距半径计算公式为6-1。《规范》货车竖曲线视距半径小于小客车半径,小客车视距半径多数大于路线极限最小竖曲线半径,小于路线一般最小半径;但《指南》小客车视距半径小于货车视距半径,货车视距半径大于路线一般最小半径。µ›_–è y~bbs.3c3t.comð·ßom0€v¨A
µ›_–è y~bbs.3c3t.comð·ßom0€v¨A
R
=(S / (a0.5+b0.5))2/ 2----------------6-1µ›_–è y~bbs.3c3t.comð·ßom0€v¨A
为了便于运用,对于标准车型小客车、货车可分别简化为6-26-3近视计算公式:µ›_–è y~bbs.3c3t.comð·ßom0€v¨A
µ›_–è y~bbs.3c3t.comð·ßom0€v¨A
R
=S2 / 4---------------6-2µ›_–è y~bbs.3c3t.comð·ßom0€v¨A
µ›_–è y~bbs.3c3t.comð·ßom0€v¨A
R
=S2 / 6---------------6-3µ›_–è y~bbs.3c3t.comð·ßom0€v¨A
8、结语µ›_–è y~bbs.3c3t.comð·ßom0€v¨A
综上所述,隧道横净距越小,要求最小平曲线半径越大;单向双车道隧道,左车道横净距小于右车道横净距;依据车辆行驶方向,左转弯隧道的横净距小于右转弯隧道;无论左转或是右转,视距曲线半径均由货车控制。现行规范规定隧道左侧路缘带宽度小于右侧路缘带宽度,适应了驾驶行为,但不利于保证曲线隧道路段的视距要求,应给与关注。隧道曲线半径应尽可能大于R2。当隧道曲线半径大于安全视距半径R1时,可不考虑其它因素对视距的影响;当曲线半径小于安全视距半径R1时,应检查纵坡对视距的影响,并控制检修道高度;当小于R2时,应同时检查隧道内部设施对视距的影响;当小于R3时,应优先考虑加大平曲线半径,或加宽隧道左侧横净距。《指南》加大了视距要求,依据隧道路段驾驶习惯,山区高速公路的中、短隧道可不考虑《指南》提高要求,特长、长隧道曲线半径,宜采用《指南》对应的视距曲线半径。µ›_–è y~bbs.3c3t.comð·ßom0€v¨A
限于水平,平面线形、平纵组合等因素未讨论,且文中难免有不妥之处,敬请批评指正。µ›_–è y~bbs.3c3t.comð·ßom0€v¨A
参考文献µ›_–è y~bbs.3c3t.comð·ßom0€v¨A
[1]中华人民共和国交通部.公路工程技术标准(JTGB01—2003.北京.人民交通出版社.2004.µ›_–è y~bbs.3c3t.comð·ßom0€v¨A
[2]中华人民共和国交通部.公路隧道设计规范(JTGD70—2004.北京.人民交通出版社.2004.µ›_–è y~bbs.3c3t.comð·ßom0€v¨A
[3]中华人民共和国交通部.公路项目安全性评价指南(JTG/TB05—2004.北京.人民交通出版社.2005.µ›_–è y~bbs.3c3t.comð·ßom0€v¨A
[4]中华人民共和国交通部.公路路线设计规范(JTG D20—2006.北京.人民交通出版社.2007.µ›_–è y~bbs.3c3t.comð·ßom0€v¨A
[5]中华人民共和国交通部.公路路线设计规范(JTJ 011—94.北京.人民交通出版社.1995.µ›_–è y~bbs.3c3t.comð·ßom0€v¨A
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