| 高速公路不良天气条件下最高车速限制合理取值 |
| Reasonable Value of Freeway Speed Limit Under Adverse Weather Condition |
| 投稿时间：2009-06-08 |
| 中文关键词:高速公路 最高车速限制 不良天气 安全车速 |
| 英文关键词:freeway maximum speed limit adverse weather safety speed |
| 基金项目:高等学校博士学科点专项科研基金(200802131013) |
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| 中文摘要: |
| 为了提高不良天气条件下高速公路行车的安全性，分析了雨、雪、雾等不良天气条件对道路交通安全的影响机理，采用数学公式推导的方法，以制动反应时间内行驶距离与制动距离之和小于能见距离为条件，推导了不良天气条件下的基于安全距离的高速公路最高车速限制值计算公式，并给出了雾天、雨天及雪天对应不同能见距离、附着系数及纵坡的车速限制标准建议。 |
| 英文摘要: |
| In order to increase safety level of driving on freeway, the paper analyzes the affecting mechanism of adverse weather conditions on road traffic safety such as rain, snow and fog. Using the method of mathematics formulas derivation, it is considered as a condition that the sum of running distance and braking distance is less than the visible distance, so that calculation formula of maximum speed limit value is presented based on the safe distance. Values of corresponding speed limits are suggested according to different visible distance, road fiction coefficient and grade. |
| 李洪强,程国柱,夏正浩.高速公路不良天气条件下最高车速限制合理取值[J].石家庄铁道大学学报：自然科学版,2009,(3):78-. |
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