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发表于 2009-06-27 09:29 |只看楼主

3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC
韩熠13ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC
王跟民23ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

（ 1.陕西交通技术咨询有限公司，陕西西安 710068；3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

2.陕西省林业勘察设计院，陕西西安 710082；）3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

［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。
［关键词］隧道横净距视距半径加宽
1、视距影响因素及隧道建筑限界
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2。

表13ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC
3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC
高速、一级公路隧道建筑限界横断面组成一览表（单位：米）3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

序号3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

设计速度（km/h）3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

车道宽度W3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

侧向宽度L3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

最小检修道J3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

建筑限界净空3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

左侧LL3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

右侧LR3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

左侧3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

右侧3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

净宽3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

净高3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

13ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1203ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3.75×23ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

0.75 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1.25 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

0.75 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

11.00 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

5.00 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

23ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1003ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3.75×23ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

0.50 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1.00 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

0.75 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

10.50 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

5.00 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

33ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

803ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3.75×23ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

0.50 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

0.75 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

10.25 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

5.00 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

43ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

603ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3.75×23ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

0.50 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

0.75 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

9.75 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

5.00 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

表23ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC
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）3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

序号3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

设计速度（km/h）3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

车道宽度W3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

侧向宽度L3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

最小人行道J3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

建筑限界净空3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

左侧LL3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

右侧LR3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

左侧3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

右侧3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

净宽3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

净高3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

13ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

80二级3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3.75×23ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

0.75 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

10.50 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

5.00 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

23ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

60二级3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3.50×23ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

0.50 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

0.75 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

9.50 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

5.00 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

33ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

40二级3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3.50×23ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

0.25 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

0.75 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

9.00 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

5.00 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

43ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

40三级3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3.50×23ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

0.25 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

0.75 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

9.00 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

4.50 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

53ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

30三级3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3.25×23ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

0.25 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

7.50 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

4.50 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

63ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

20四级3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3.00×23ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

0.50 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

0.25 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

7.50 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

4.50 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

二级公路设计速度为80和60公里/小时，隧道内人行道（兼检修道）最小宽度为1.0米，净宽分别为11米和10米，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米，小于《标准》规定最小值，本文采用《标准》7.5米的建筑限界。
2、标准车型与视距
计算车型分别选择小客车和货车，小客车宽度B为1.8米，货车宽度B为2.5米，驾驶员位于车辆左侧0.5米处。前方障碍物高均为0.1米。停车视距以小客车为标准，目高为1.2米，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米。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。

表33ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC
3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC
3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC
3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC
高速、一级公路停车视距及货车停车视距（单位：米）3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

序号3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

设计速度3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

标准停车视距3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

指南停车视距3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

标准货车3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

停车视距3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

指南货车3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

停车视距3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

《标准》修正停车货车视距3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3％3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

4％3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

5%3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

6%3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

7％3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

8％3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

9％3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

13ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1203ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

2103ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

2803ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

2453ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

4173ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

2653ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

2733ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

--3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

23ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1003ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1603ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

2053ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1803ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3013ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1903ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1953ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

2003ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

--3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

33ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

803ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1103ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1403ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1253ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

2023ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1303ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1323ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1363ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1393ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

43ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

603ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

753ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

903ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

853ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1203ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

893ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

913ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

933ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

953ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

表4

二、三、四级公路停车视距及货车停车视距（单位：米）

序号3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

设计速度3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

标准停车视距3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

指南停车视距3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

标准货车3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

停车视距3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

指南货车3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

停车视距3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

《标准》下坡修正停车货车视距3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3％3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

4％3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

5%3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

6%3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

7％3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

8％3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

9％3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

13ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

803ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1103ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1403ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1253ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

2023ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1303ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1323ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1363ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1393ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

23ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

603ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

753ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

903ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

853ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1203ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

893ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

913ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

933ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

953ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

33ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

403ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

--3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

503ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

--3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

503ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

43ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

303ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

--3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

353ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

--3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

353ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

53ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

203ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

--3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

203ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

--3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

203ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

《指南》修正了货车停车视距，纵坡大于2％，半径小于400米路段，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。
3、公路隧道横净距
当检修道（人行道，下同）高度大于0.1米，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米。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。
左车道横净距m＝(W/2－B)/2＋0.5＋L左[＋J左＋0.25]
………………………3-1
右车道横净距m＝(W/2＋B)/2－0.5＋L右[＋J右＋0.25]
………………………3-2
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。
表5

公路隧道提供的最大横净距（单位：m）

设计速度3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

m13ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

m23ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

m33ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

左侧车道3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

右侧车道3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

左侧车道3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

右侧车道3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

左侧车道3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

右侧车道3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

小车3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

货车3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

小车3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

货车3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

小车3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

货车3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

小车3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

货车3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

小车3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

货车3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

小车3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

货车3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1203ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

2.225 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1.875 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3.525 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3.875 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

2.975 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

2.625 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

4.275 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

4.625 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3.225 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

2.875 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

4.525 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

4.875 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1003ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1.975 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1.625 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3.275 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3.625 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

2.725 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

2.375 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

4.025 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

4.375 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

2.975 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

2.625 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

4.275 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

4.625 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

803ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1.975 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1.625 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3.025 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3.375 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

2.725 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

2.375 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3.775 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

4.125 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

2.975 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

2.625 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

4.025 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

4.375 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

603ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1.975 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1.625 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3.025 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3.375 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

2.725 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

2.375 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3.775 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

4.125 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

2.975 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

2.625 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

4.025 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

4.375 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

80二3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

2.225 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1.875 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3.025 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3.375 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3.225 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

2.875 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

4.025 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

4.375 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3.475 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3.125 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

4.275 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

4.625 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

60二3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1.850 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1.500 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

2.650 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3.000 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

2.850 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

2.500 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3.650 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

4.000 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3.100 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

2.750 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3.900 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

4.250 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

40二3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1.600 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1.250 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

2.400 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

2.750 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

2.350 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

2.000 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3.150 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3.500 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

2.600 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

2.250 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3.400 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3.750 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

40三3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1.600 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1.250 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

2.400 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

2.750 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

2.350 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

2.000 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3.150 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3.500 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

2.600 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

2.250 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3.400 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3.750 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

30三3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1.475 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1.125 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

2.275 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

2.625 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1.725 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1.375 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

2.525 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

2.875 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1.975 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1.625 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

2.775 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3.125 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

20四3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1.600 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1.250 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

2.400 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

2.750 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1.850 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1.500 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

2.650 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3.000 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

2.100 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1.750 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

2.900 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3.250 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

4、隧道视距平曲线半径
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：
　……………………………4-1
式中： —实际横净距，米；
—计算车道中线处的曲线半径，米；
—（货车）停车视距，米。
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0.3～0.5米，误差可以忽略。
………………………………………4-2
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。
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。

3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

表63ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC
3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC
公路隧道视距平曲线半径计算值（单位：米）3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

设计速度3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

安全视距半径R13ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

一般视距半径R23ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

最小视距半径R33ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

左侧车道3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

右侧车道3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

左侧车道3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

右侧车道3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

左侧车道3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

右侧车道3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

小车3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

货车3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

小车3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

货车3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

小车3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

货车3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

小车3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

货车3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

小车3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

货车3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

小车3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

货车3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1203ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

24783ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

40023ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

15643ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

19363ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

18533ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

28583ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

12893ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

16223ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

17093ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

26103ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

12183ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

15393ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1003ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

16203ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

24923ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

9773ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

11173ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

11743ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

17053ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

7953ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

9263ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

10763ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

15433ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

7493ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

8763ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

803ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

7663ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

12023ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

5003ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

5793ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

5553ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

8223ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

4013ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

4733ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

5083ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

7443ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3763ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

4463ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

603ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3563ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

5563ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

2323ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

2683ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

2583ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3803ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1863ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

2193ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

2363ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3443ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1753ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

2063ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

80二3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

6803ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

10423ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

5003ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

5793ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

4693ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

6793ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3763ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

4463ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

4353ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

6253ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3543ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

4223ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

60二3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3803ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

6023ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

2653ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3013ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

2473ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3613ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1933ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

2263ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

2273ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3283ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1803ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

2133ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

40二3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1253ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

2503ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

833ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1143ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

853ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1563ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

633ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

893ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

773ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1393ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

593ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

833ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

40三3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1253ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

2503ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

833ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1143ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

853ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1563ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

633ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

893ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

773ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1393ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

593ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

833ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

30三3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

763ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1363ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

493ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

583ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

653ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1113ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

453ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

533ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

573ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

943ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

413ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

493ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

20四3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

313ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

403ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

213ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

183ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

273ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

333ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

193ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

173ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

243ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

293ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

173ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

153ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

表7

公路隧道视距平曲线半径建议值（单位：m）

设计速度3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

安全视距半径R13ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

一般视距半径R23ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

最小视距半径R33ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

左偏曲线3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

右偏曲线3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

左偏曲线3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

右偏曲线3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

左偏曲线3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

右偏曲线3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

标准3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

指南3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

标准3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

指南3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

标准3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

指南3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

标准3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

指南3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

标准3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

指南3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

标准3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

指南3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1203ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

40053ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

116003ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

19403ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

56103ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

28603ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

82853ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

16253ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

47053ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

26153ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

75653ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

15453ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

44603ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1003ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

24953ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

69753ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

11203ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

31253ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

17103ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

47703ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

9303ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

25903ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

15453ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

43153ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

8803ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

24503ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

803ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

12053ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

31453ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

5853ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

15153ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

8253ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

21503ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

4753ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

12403ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

7503ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

19453ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

4503ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

11703ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

603ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

5603ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

11103ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

2703ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

5353ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3853ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

7603ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

2253ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

4403ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3503ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

6903ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

2103ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

4153ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

80二3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

10453ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

5853ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

6853ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

4503ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

6303ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

4253ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

60二3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

6053ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3053ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3653ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

2303ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3303ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

2153ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

40二3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

2553ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1203ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1603ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

953ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1453ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

853ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

40三3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

2553ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1203ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1603ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

953ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1453ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

853ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

30三3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1403ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

603ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1153ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

553ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1003ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

553ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

20四3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

453ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

203ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

353ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

203ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

353ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

203ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

5、隧道断面加宽
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0.55和1.65分别为80和100公里/小时的最大加宽值。

表8
曲线隧道横净距加宽参考表 （单位：米）

设计速度3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

03ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

0.253ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

0.53ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

0.75（0.55）3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1.003ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1.253ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1.53ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1.75（1.65）3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1203ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

26153ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

24003ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

22253ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

20703ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

19353ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

18203ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

17153ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

16203ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1003ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

15453ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

14103ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

13003ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

12003ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

11203ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

10453ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

9803ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

9503ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

803ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

7503ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

6803ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

6253ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

6203ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

--3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

603ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3503ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

--3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

6、纵坡路段视距平曲线半径
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。
表 9

3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC
纵坡路段货车停车视距修正值（单位：米）

设计速度3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

平坡路段3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

2％3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3％3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

4％3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

5％3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

6％3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

标准3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

指南3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

标准3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

指南3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

标准3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

指南3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

标准3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

指南3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

标准3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

指南3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

标准3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

指南3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1203ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

2453ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

4173ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

123ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

663ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

203ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

853ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

283ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1013ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1003ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1803ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3013ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

53ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

463ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

103ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

593ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

153ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

713ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

203ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1123ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

803ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1253ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

2023ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

33ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

303ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

53ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

393ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

73ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

463ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

113ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

643ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

143ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

813ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

603ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

853ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1203ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

23ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

173ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

43ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

223ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

63ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

263ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

83ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

363ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

103ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

453ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

表10
《标准》纵坡修正后的视距半径表

设计速度（km/h）3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

2%3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3%3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

4%3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

5%3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

6%3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

左偏3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

右偏3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

左偏3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

右偏3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

左偏3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

右偏3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

左偏3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

右偏3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

左偏3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

右偏3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

R13ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

120 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

4403 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

2131 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

4682 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

2265 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

4969 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

2404 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

100 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

2633 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1180 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

2777 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1245 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

2925 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1311 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3077 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1379 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

80 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1260 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

607 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1300 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

626 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1340 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

645 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1423 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

685 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1486 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

716 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

60 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

582 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

280 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

609 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

293 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

637 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

307 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

665 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

320 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

694 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

334 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

R23ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

120 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3145 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1785 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3344 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1898 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3549 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

2014 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

100 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1801 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

978 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1900 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1031 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

2001 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1086 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

2105 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1143 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

80 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

862 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

496 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

889 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

512 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

917 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

528 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

973 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

560 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1017 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

585 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

60 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

398 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

229 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

417 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

240 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

436 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

251 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

455 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

262 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

475 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

273 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

R33ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

120 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

2872 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1694 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3053 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1801 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3240 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1911 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

100 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1630 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

925 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1719 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

976 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1811 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1028 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1905 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1081 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

80 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

780 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

468 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

805 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

483 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

830 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

498 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

881 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

528 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

920 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

552 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

60 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

360 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

216 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

377 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

226 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

394 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

237 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

412 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

247 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

430 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

258 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

表11
《指南》纵坡修正后的视距半径表

设计速度（km/h）3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

2%3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3%3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

4%3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

5%3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

6%3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

左偏3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

右偏3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

左偏3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

右偏3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

左偏3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

右偏3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

左偏3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

右偏3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

左偏3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

右偏3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

R13ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

120 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

15553 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

7525 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

168003ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

8129 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

178883ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

8656 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

　3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

100 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

9262 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

4152 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

9969 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

4469 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

10645 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

4772 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

131213ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

5882 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

　3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

80 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

4140 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1993 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

44683ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

2151 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

47313ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

2278 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

54433ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

2621 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

6161 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

2966 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

60 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1444 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

695 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

15513ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

747 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1640 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

789 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

18723ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

901 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

2094 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1008 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

R23ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

120 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

11109 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

6305 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

120003ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

6811 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

127773ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

7252 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

　3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

100 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

6337 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3440 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

68213ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3703 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

7283 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3954 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

8977 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

4873 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

　3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

80 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

2833 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1631 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

30573ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1760 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3237 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1864 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3724 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

2144 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

4215 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

2427 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

60 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

988 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

569 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

10613ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

611 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1122 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

646 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1281 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

737 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1433 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

825 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

R33ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

120 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

10143 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

5982 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

10957 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

6462 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

11666 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

6880 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

　3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

100 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

5734 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3254 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

6171 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3503 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

6590 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3740 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

81223ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

4610 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

　3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

80 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

2563 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1538 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

2766 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1659 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

2929 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1757 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

33693ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

2022 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

3814 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

2288 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

60 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

894 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

536 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

960 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

576 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1015 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

609 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

11593ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

695 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

1296 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

778 3ÅÇ /áPÔ¼bbs.3c3t.comaM¥[dÔ4ºC

7、竖曲线视距半径
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。
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。

R竖=(S / (a0.5+b0.5))2/ 2----------------6-1
为了便于运用，对于标准车型小客车、货车可分别简化为6-2和6-3近视计算公式：

R小=S2 / 4---------------6-2

R货=S2 / 6---------------6-3
8、结语
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。
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。
参考文献
[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.
[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.
[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.
[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.
[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.
作者简介：
1、
韩熠：工作单位：陕西交通技术咨询有限公司，同济大学道路工程专业，本科，高级工程师，总经理。联系方式：西安市含光北路110号，陕西交通技术咨询有限公司，电话：(029)88423020。
2、
王跟民：陕西省林业勘察设计院公路分院，工程师。

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