Modelling of Queue Length in Freeway Work Zones – Case Study Karaj-Tehran Freeway

IF 0.8 4区 工程技术 Q4 TRANSPORTATION SCIENCE & TECHNOLOGY Promet-Traffic & Transportation Pub Date : 2021-01-31 DOI:10.7307/PTT.V33I1.3582
Mojtaba Mousazadeh Gilandeh, Sari Sharif Ali, M. Goodarzi, N. Amini, H. Latifi
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引用次数: 2

Abstract

In this study, the traffic parameters were collected from three work zones in Iran in order to evaluate the queue length in the work zones. The work zones were observed at peak and non-peak hours. The results showed that abrupt changes in Freeway Free Speed (FFS) and arrival flow rate caused shockwaves and created a bottleneck in that section of the freeway. In addition, acceleration reduction, abrupt change in the shockwave speed, abrupt change in the arrival flow rate and increase in the percentage of heavy vehicles have led to extreme queue lengths and delay. It has been found that using daily traffic data for scheduling the maintenance and rehabilitation projects could diminish the queue length and delay. Also, by determining the bypass for heavy vehicles, the delay can be significantly reduced; by more than three times. Finally, three models have been presented for estimating the queue length in freeway work zones. Moreover, the procedure shown for creating a queue length model can be used for similar freeways.
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高速公路工作区域排队长度建模——以卡拉奇-德黑兰高速公路为例
在本研究中,收集了伊朗三个工作区的交通参数,以评估工作区的排队长度。在高峰和非高峰时间观察工作区域。结果表明,高速公路自由速度(FFS)和到达流速率的突变会引起冲击波,并在该路段形成瓶颈。此外,加速度的减小、冲击波速度的突变、到达流率的突变和重型车辆百分比的增加都导致了极端的排队长度和延误。研究发现,利用日常交通数据来安排维修和修复项目可以减少排队长度和延误。此外,通过确定重型车辆的旁路,可以大大减少延误;超过三倍。最后,给出了高速公路工作区域队列长度估计的三种模型。此外,所示的创建队列长度模型的过程也可用于类似的高速公路。
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来源期刊
Promet-Traffic & Transportation
Promet-Traffic & Transportation 工程技术-运输科技
CiteScore
1.90
自引率
20.00%
发文量
62
审稿时长
3 months
期刊介绍: This scientific journal publishes scientific papers in the area of technical sciences, field of transport and traffic technology. The basic guidelines of the journal, which support the mission - promotion of transport science, are: relevancy of published papers and reviewer competency, established identity in the print and publishing profile, as well as other formal and informal details. The journal organisation consists of the Editorial Board, Editors, Reviewer Selection Committee and the Scientific Advisory Committee. The received papers are subject to peer review in accordance with the recommendations for international scientific journals. The papers published in the journal are placed in sections which explain their focus in more detail. The sections are: transportation economy, information and communication technology, intelligent transport systems, human-transport interaction, intermodal transport, education in traffic and transport, traffic planning, traffic and environment (ecology), traffic on motorways, traffic in the cities, transport and sustainable development, traffic and space, traffic infrastructure, traffic policy, transport engineering, transport law, safety and security in traffic, transport logistics, transport technology, transport telematics, internal transport, traffic management, science in traffic and transport, traffic engineering, transport in emergency situations, swarm intelligence in transportation engineering. The Journal also publishes information not subject to review, and classified under the following headings: book and other reviews, symposia, conferences and exhibitions, scientific cooperation, anniversaries, portraits, bibliographies, publisher information, news, etc.
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