印度高速公路动态限速可行性研究

IF 2.4 Q3 TRANSPORTATION
Shishupal Singh, Swati Maitra
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引用次数: 0

摘要

根据实时交通、道路和天气条件而变化的速度限制被称为动态速度限制(DSL)。在动态限速方案中,通过放置在车道上方或公路两侧的电子标志或可变信息标志(VMS)向道路使用者告知限速的变化。在印度,大多数高速公路都有静态限速。在毗邻路边学校、市场区域、公共汽车站和交叉路口的地点或路段,车速限制较低,以提高易受伤害的道路使用者(VRU)的安全。在这些路段,直行车辆的行车时间较长。DSL 有可能减少行车时间和车辆速度的变化,从而有助于加强道路安全。本研究采用成本效益分析法,对印度一条典型高速公路的不同路段采用 DSL 的可行性进行了调查,该公路经过各种路边开发项目和人类活动。通过比较静态和动态限速条件下的行车时间,估算了 DSL 带来的行车时间效益。结果表明,由于采用了 DSL,通过该路段的所有车辆的总行驶时间都有明显的节省。效益成本比大于统一值表明,在经过路边学校、市场区域、公共汽车站和交叉路口的几段高速公路上部署 DSL 是有益的。效益成本比还可用于确定部署 DSL 的可行地点的优先次序。本研究的结果很可能会引起不同发展中国家决策者的兴趣,因为这些国家的基础设施/可变车载设备不足,道路安全是一个主要问题,而超速则被认为是一个主要问题。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Investigating the feasibility of dynamic speed limit on Indian highways

Speed limits that change as per real time traffic, road, and weather conditions are termed as Dynamic Speed Limits (DSL). Road users are informed of speed limit changes in DSL scheme by electronic signs or Variable Message Signs (VMS) placed above the lanes or side-mounted along highways. In India, most of the highways have static speed limits. The speed limits are kept lower at locations or stretches adjacent to roadside schools, market areas, bus stops and intersections, for enhancing safety of Vulnerable Road Users (VRUs). This causes higher travel time to through traffic while travelling through these stretches. DSL has the potential in reducing the travel time and the variability of speed of vehicles, thus helps in enhancing road safety. The present work investigates the feasibility of DSL on various segments of a typical Indian highway passing through various roadside developments and human activities using cost-benefit analysis. The travel time benefits due to DSL are estimated by comparing the travel times with static and dynamic speed limit conditions. The results indicate that there is a significant amount of saving in aggregate travel time of all vehicles passing through the stretch due to the application of DSL. The benefit cost ratios greater than unity indicated that it is beneficial to deploy DSL on several segments of the highway passing through roadside schools, market areas, bus stops and intersections. The Benefit-Cost Ratio is also used advantageously to prioritize viable locations for deployment of DSL. The findings from the present work are likely to be of interest to policy makers in different developing countries where infrastructure/facilities for VRUs are deficient, road safety is a major concern and speeding is identified as a major problem.

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来源期刊
CiteScore
5.00
自引率
12.00%
发文量
222
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