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首页> 外文会议>18th world congress on intelligent transport systems : Featuring its america's annual meeting and exposition >USE AND CONTENT OF CMS AND VSL UNDER LOW VISIBILITY CONDITIONS
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USE AND CONTENT OF CMS AND VSL UNDER LOW VISIBILITY CONDITIONS

机译：低可见性条件下CMS和VSL的使用和内容

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摘要

This paper examines drivers use of advisory or warning messages displayed on portablernChangeable Message Signs (CMS) and/or Variable Speed Limit (VSL) signs in differentrnvisibility, traffic conditions, and at two types of roadways; freeways and two-lane roads. Inrnaddition, it investigates the factors affecting drivers’ behavior in adverse visibility conditions.rnA multiple approach survey was designed to collect data from Central Florida drivers in Fallrn2009. Several categorical data analysis techniques and Multivariate Probit models werernestimated. The results revealed that only 37% of the respondents were willing to follow CMSrninstructions at low traffic volume while driving on a freeway and only 35% of the respondentsrnwere willing to follow VSL instructions while driving on a freeway at very light fog and lowrntraffic volume.rnMoreover, gender, age, road type, visibility condition, and familiarity with VSL were thernsignificant factors affecting the likelihood of reducing speed following CMS/VSL instructionsrnunder reduced visibility conditions. Other objectives of this study were to determine the contentrnof messages that would achieve the best perceived safety and drivers’ compliance and tornexamine the best way to improve safety during these adverse visibility conditions. The resultsrnindicated that “Caution-fog ahead-reduce speed” was perceived as the best message and usingrnCMS and VSL signs together is the best way to improve safety during such inclement weatherrnsituations. Based on the findings of the present study, several recommendations are suggested asrnguidelines to improve safety in reduced visibility conditions.
机译：本文研究了驾驶员在不同可见性，交通状况以及两种类型的道路上使用的可移动消息标志（CMS）和/或变速限制（VSL）标志上显示的建议或警告消息的情况；高速公路和两车道的道路。此外，它还研究了在不利的能见度条件下影响驾驶员行为的因素。rn2009年秋季发生的一次多途径调查旨在收集佛罗里达州中部驾驶员的数据。重新定义了几种分类数据分析技术和多元Probit模型。结果显示，只有37％的受访者愿意在高速公路上行驶时以低交通量遵循CMSrn指令，只有35％的受访者愿意在高速公路上驾驶时以轻雾和低交通量遵循VSL指令。 ，性别，年龄，道路类型，能见度条件和对VSL的熟悉程度是影响在降低能见度条件下遵循CMS / VSL指令降低速度的可能性的重要因素。这项研究的其他目标是确定满足最佳感知安全性和驾驶员合规性的内容信息，并仔细研究在这些不利能见度条件下改善安全性的最佳方法。结果表明，“警告雾提前降低速度”被认为是最好的信息，同时使用CMS和VSL标志是在这种恶劣天气条件下提高安全性的最佳方法。根据本研究的结果，提出了一些建议，作为提高在降低能见度条件下的安全性的指导方针。

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  • 会议地点 Orlando FL(US)
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    Hany Hassan; Mohamed Abdel-Aty; Amr Oloufa; Richard Morrow;

  • 作者单位

    University of Central Florida Department of Civil, Environmental and Construction Engineering Orlando, FL 32816-2450 Phone: (407) 823-0300 Fax: (407) 823-3315 Email: hhassan@knights.ucf.edu;

    University of Central Florida Department of Civil, Environmental and Construction Engineering Orlando, FL 32816-2450;

    University of Central Florida Department of Civil, Environmental and Construction Engineering Orlando, FL 32816-2450;

    Florida Department of Transportation, District Five Email: Rick.Morrow@dot.state.fl.us;

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