Analysis the Reliability of Travel Time in Urban Corridors in Baghdad City

IF 17.7 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY Accounts of Chemical Research Pub Date : 2024-07-01 DOI:10.31026/j.eng.2024.07.12

Shaymaa Hasan Taher, Z. Alkaissi

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Abstract

Travel-time reliability is a crucial performance measure for transportation systems. This research aims to estimate travel time and predict delay time on three routes in Baghdad city using GPS devices: Safi Al-Den Street, Palestine Street, and the Army Channel Expressway. The study was conducted northward from 7:00 a.m. to 9:00 p.m. Reliability indices for the first and second routes with signalized intersections, including buffer index, travel time index, and 95th percentile travel time, were determined. Safi Al-Den Street's buffer time index for links 1 to 3 is approximately 44.75%, 39.87%, and 39.12%, respectively. The highest travel time index value is observed in link 3 at 8.9%. Link 1 has the longest 95% travel time at 659 seconds. Palestine Street shows a high buffer time index in links 1 and 3 at around 32.39% and 24.65%, respectively. The highest travel time index is in link 3 at 6.84%, attributed to congestion from increased educational, medical, and commercial trips. The longest 95% travel time is 430 seconds in link 7. This study offers valuable insights into the reliability of travel time in urban corridors in Baghdad city, aiding transportation planners and engineers in making informed decisions on traffic management, infrastructure development, and policy-making.

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巴格达市城市走廊旅行时间可靠性分析

旅行时间可靠性是衡量交通系统性能的一个重要指标。本研究旨在利用 GPS 设备估算巴格达市内三条路线的旅行时间并预测延迟时间：Safi Al-Den 街、巴勒斯坦街和军队通道高速公路。研究从早上 7:00 至晚上 9:00 向北进行。研究确定了第一条和第二条有信号灯路口的路线的可靠性指数，包括缓冲指数、旅行时间指数和第 95 百分位数旅行时间。Safi Al-Den 街 1 至 3 号线路的缓冲时间指数分别约为 44.75%、39.87% 和 39.12%。旅行时间指数值最高的是 3 号连接线，为 8.9%。1 号连接线的 95% 行车时间最长，为 659 秒。巴勒斯坦街在 1 号和 3 号连接线的缓冲时间指数较高，分别约为 32.39% 和 24.65%。第 3 连接线的行车时间指数最高，为 6.84%，这是由于教育、医疗和商业出行增加造成的拥堵。第 7 号连接线的 95% 旅行时间最长，为 430 秒。这项研究为巴格达市城市走廊旅行时间的可靠性提供了宝贵的见解，有助于交通规划人员和工程师在交通管理、基础设施开发和政策制定方面做出明智的决策。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.