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首页> 外文期刊>Transport Reviews >Effectiveness of Using Variable Message Signs to Disseminate Dynamic Traffic Information: Evidence from Field Trails in European Cities
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Effectiveness of Using Variable Message Signs to Disseminate Dynamic Traffic Information: Evidence from Field Trails in European Cities

机译：使用可变消息符号传播动态交通信息的有效性：欧洲城市实地考察的证据

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Variable message signs (VMS) can provide up-to-date traffic information and guidance to drivers through electronic signs at the roadside. The paper draws together the results from VMS field trials conducted in nine cities as part of European Union-sponsored research projects carried out between 1994 and 1999. The projects followed common guidelines in carrying out field trial evaluations, which has enabled generalized findings to be made on the impacts of the different VMS applications. The main emphasis in the paper is on drivers' reactions to VMS and the impacts of VMS on road network efficiency. Results are reported for four different types of traffic information. For incident messages, it is not only the severity of the problem reported that influences the level of diversions, but also other factors such as the specific location mentioned and the availability of viable alternative routes to avoid the problem location. For route guidance information, it is demonstrated that substantial diversions occur when the route advice differs from that given normally. For continuous information describing the traffic state on a major route, information increases the use of the major route and reduces use of alternative routes if there are no traffic problems reported on the major route. Travel time information was well regarded by drivers and found to be effective in inducing route changes. In general, the deployments of VMS to inform drivers of traffic conditions have proved successful in terms of improving network travel times and reducing environmental impacts. Whilst such changes have been relatively small, driver perception of the benefits is much higher. This is potentially very significant in terms of the role that VMS can play in the development of integrated transport strategies, as the provision of information may encourage greater acceptance of a range of demand management measures.
机译：可变信息标志（VMS）可以通过路边的电子标志为驾驶员提供最新的交通信息和指南。本文汇总了在1994年至1999年之间由欧盟资助的研究项目中，在9个城市进行的VMS现场试验的结果。这些项目遵循进行现场试验评估的通用准则，从而能够得出普遍的结论。不同的VMS应用程序的影响。本文的主要重点是驾驶员对VMS的反应以及VMS对道路网络效率的影响。报告四种不同类型交通信息的结果。对于事件消息，不仅是所报告问题的严重性影响转移的程度，而且还影响其他因素，例如提到的特定位置以及避免问题位置的可行替代路线的可用性。对于路线引导信息，证明了当路线建议与通常给出的路线建议不同时，会发生大量改道。对于描述主要路线上交通状况的连续信息，如果在主要路线上未报告交通问题，则信息会增加主要路线的使用并减少替代路线的使用。驾驶员充分考虑了出行时间信息，并发现其可有效地诱导路线变化。总体而言，事实证明，部署VMS可以告知驾驶员交通状况，从而可以缩短网络传输时间并减少对环境的影响。尽管这些变化相对较小，但驾驶员对这些好处的看法却要高得多。就VMS在综合运输战略的发展中可以发挥的作用而言，这可能非常重要，因为信息的提供可能会鼓励人们更广泛地接受一系列需求管理措施。

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