接受角度:监测交通安全的新替代安全措施

IF 3.2 Q3 TRANSPORTATION
Narayana Raju , Shriniwas Arkatkar , Said Easa
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引用次数: 0

摘要

本文提出了一个利用混合(异构)交通的高质量轨迹数据来监控高速公路交通流测量的框架。该框架包括一种新的测量方法,可反映跟车驾驶员在跟车过程中的注意力,称为 "接受角"。这种测量方法与传统测量方法(前车和后车之间的距离差距及其速度)相结合,对两辆车之间的可能追尾碰撞相互作用进行建模。为了验证所提出的框架,我们使用了印度的两个混合交通路段,它们位于同一条道路上。其中一个路段没有施工活动(基本路段),另一个路段有施工活动。验证包括两项任务。首先,为了追踪车辆的运动轨迹,在三个交通流量水平下开发了研究路段的轨迹数据,其中两个路段之间的两个流量水平具有可比性。其次,使用轨迹数据来验证所提出的框架,该框架针对三个交通流量水平下两个路段的交通流进行了评估。结果显示,与其他车辆类别相比,交通流中的小型车辆表现出更高的接受角(关注度较低)。有趣的是,研究还发现了三个交通流量等级在安全方面的差异。据观察,在走走停停的条件下,车流比其他车流条件下更安全。此外,由于施工路段采取了预先警示措施,该路段的车辆比基本路段的车辆更加注意安全。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Receptiveness angle: A new surrogate safety measure for monitoring traffic safety

This paper presents a framework for monitoring highway traffic-stream measures using quality trajectory data of mixed (heterogeneous) traffic. The framework includes a new measure that reflects the attentiveness of the follower driver, called receptiveness angle, in the vehicle-following process. This measure is integrated with the traditional measures (distance gap between the leader and follower vehicles and their speeds) to model the probabilistic rear-end collision interactions between the two vehicles. To verify the proposed framework, two road sections in India with mixed traffic conditions, located along the same road, were used. One section has no construction activity (base section) and the other has construction activity. The verification consisted of two tasks. First, to trace the movements of the vehicles, trajectory data over the study sections were developed for three traffic-flow levels, where two flow levels between the two sections were comparable. Second, the trajectory data were used to verify the proposed framework which was evaluated for the traffic streams of the two sections at the three traffic-flow levels. The results showed that smaller vehicles in the traffic stream exhibited a higher receptiveness angle (paid less attention) compared to other vehicle classes. Interestingly, the study revealed variations in safety among the three traffic-flow levels. It was observed that the traffic stream was safer at stop-and-go conditions than at other flow conditions. Furthermore, due to the pre-cautioning measures for the construction section, vehicles in this section were more attentive than those in the base section.

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来源期刊
IATSS Research
IATSS Research TRANSPORTATION-
CiteScore
6.40
自引率
6.20%
发文量
44
审稿时长
42 weeks
期刊介绍: First published in 1977 as an international journal sponsored by the International Association of Traffic and Safety Sciences, IATSS Research has contributed to the dissemination of interdisciplinary wisdom on ideal mobility, particularly in Asia. IATSS Research is an international refereed journal providing a platform for the exchange of scientific findings on transportation and safety across a wide range of academic fields, with particular emphasis on the links between scientific findings and practice in society and cultural contexts. IATSS Research welcomes submission of original research articles and reviews that satisfy the following conditions: 1.Relevant to transportation and safety, and the multiple impacts of transportation systems on security, human health, and the environment. 2.Contains important policy and practical implications based on scientific evidence in the applicable academic field. In addition to welcoming general submissions, IATSS Research occasionally plans and publishes special feature sections and special issues composed of invited articles addressing specific topics.
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