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首页> 外文期刊>Intelligent Transportation Systems, IEEE Transactions on >Improving Traffic Flow Efficiency by In-Car Advice on Lane, Speed, and Headway
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Improving Traffic Flow Efficiency by In-Car Advice on Lane, Speed, and Headway

机译：通过车道，车速和车距建议，提高交通流效率

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摘要

This paper presents a new in-car advisory system that gives advices on lane, speed, and headway. The advices are determined at a traffic management center based on a new lane level traffic state prediction model, in order to prevent or solve suboptimal traffic flow conditions. The system aims for an optimal lane distribution in high flow conditions, decreasing the chance of spillback by advising drivers away from the right lane, and a reduction in the capacity drop by advising drivers to maintain a short (but safe) headway at the end of congestion. The system is implemented in microscopic simulation to evaluate the potential benefits for different penetration and compliance rates. Benefits at both low and high rates are found as only a small redistribution of traffic over the lanes may be required to stabilize flow. The capacity drop is mainly reduced at high rates as it is required that many vehicles accelerate more. The maximum benefit found is a reduction of 49% in travel time delay. Effects are smaller at lower rates. Negative side effects are also found, including oversaturation of lanes partially by advised lane changes and increased probability of spillback taking effect.
机译：本文介绍了一种新的车载咨询系统，该系统可提供有关车道，速度和前进距离的建议。这些建议是在交通管理中心根据新的车道级交通状态预测模型确定的，以防止或解决次优交通状况。该系统旨在在高流量条件下实现最佳车道分配，通过建议驾驶员远离正确的车道来减少回溢的机会，并通过建议驾驶员在驾驶结束时保持短暂（但安全）的行驶距离来减少通行能力下降。拥塞。该系统在微观仿真中实施，以评估不同渗透率和达标率的潜在利益。发现低费率和高费率的好处，因为仅需要对车道上的流量进行少量重新分配即可稳定流量。由于需要大量车辆加速，因此主要以高速率减少容量下降。发现的最大好处是旅行时间延迟减少了49％。在较低的速率下效果较小。还发现了不利的副作用，包括部分由于建议的车道变更而导致的车道过饱和，以及增加回弹效果的可能性。

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