Investigating the safety performance of the new continuous green T-partial cloverleaf A interchange

IF 2.4 3区 工程技术 Q3 TRANSPORTATION
Mutasem Alzoubaidi, M. Zlatkovic
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引用次数: 3

Abstract

Abstract This study proposes and investigates the safety performance of a new innovative interchange design, called the continuous green T-partial cloverleaf A (CGT-parclo A). The CGT-parclo A was compared with various other conventional and unconventional service interchange designs. To address the objectives of this research, a simulation modeling network was built using VISSIM microsimulation software coupled with Econolite’s external ASC/3 Software-in-the-Loop signal controller. The Federal Highway Administration’s Surrogate Safety Assessment Model was employed to produce results of surrogate safety measures. Moreover, analyses of variance were conducted to examine the statistical significance of the results. The findings indicate that the CGT-parclo A is the best form of parclo A interchanges, with the potential to reduce the likelihood of crashes as well as their frequencies and severities. Specifically, the CGT-parclo A reduced the crossing conflicts, rear-end conflicts, lane change conflicts, and the total number of conflicts by ranges of 6.4% to 43.7%, 4.8% to 19.7%, 1.2% to 30.0%, and 7.6% to 28.1%, respectively.
新型连续绿色t型部分立交A立交的安全性能研究
摘要本研究提出并研究了一种新型创新立交设计,即连续绿色t型部分三叶草立交a (CGT-parclo a)的安全性能,并将CGT-parclo a与其他各种常规和非常规服务立交设计进行了比较。为了实现本研究的目标,使用VISSIM微仿真软件与Econolite的外部ASC/3软件在环信号控制器相结合,构建了仿真建模网络。采用联邦公路管理局的替代安全评估模型得出替代安全措施的结果。此外,进行方差分析以检验结果的统计显著性。研究结果表明,CGT-parclo A是parclo A交汇处的最佳形式,有可能减少碰撞的可能性以及它们的频率和严重程度。其中,CGT-parclo A将交叉口冲突、追尾冲突、变道冲突和总冲突数量分别降低了6.4% ~ 43.7%、4.8% ~ 19.7%、1.2% ~ 30.0%和7.6% ~ 28.1%。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
CiteScore
6.00
自引率
15.40%
发文量
38
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