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Article
ASSESSMENT LANE CHANGING BEHAVIOR IN LOCAL RURAL ROADS

Authors: Ali Jihad Kadhim --- Hamid Athab Edan Al-Jameel
Journal: Journal of Engineering and Sustainable Development مجلة الهندسة والتنمية المستدامة ISSN: 25200917 Year: 2019 Volume: 23 Issue: 3 Pages: 1-14
Publisher: Al-Mustansyriah University الجامعة المستنصرية

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Abstract

The lane changing model is one of the most important cornerstone models to build a traffic microscopic simulation model. To build such lane changing model, there is a need to investigate the drivers’ characteristics from field data. Accordingly, this study has mainly focused on lane changing behavior of Iraqi drivers. A huge amount of data has been collected from different sites in Iraq using specific type of cameras; these five sites (roads) are: Baghdad–Hilla, Baghdad–Mahmudiyah, Baghdad-Kut, Baghdad–Diyala and Najaf- Karbala roads. In addition, gun-speed has been also used to collect data of desired speeds. Different data have also been collected such as flow, headway, and speeds. The results show that as the flow increases, the frequency of lane changing also increases up to specific range of flow then as flow increases the frequency of lane changing decreases. In addition, this study indicates higher number of lane changing over all observed sites comparing with other countries. Finally, this study also indicates that the violated number of lane change varies with different levels of flow.


Article
MODELING DRIVER BEHAVIOR FOR TWO AND THREE LANE SECTIONS IN IRAQI RURAL ROADS

Authors: Hamid Athab Al-Jameel --- Ali Jihad Kadhim
Journal: Al-Qadisiyah Journal for Engineering Sciences مجلة القادسية للعلوم الهندسية ISSN: 19984456 Year: 2017 Volume: 10 Issue: 4 Pages: 431-450
Publisher: Al-Qadisiyah University جامعة القادسية

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Abstract

Modeling driver behavior is the corner stone for any traffic simulation model. Driving behavior is a complex task to mimic the reality by simulation model. This study has focused on collecting field data from several rural road sites. These data include lane utilization, lane changing and headway. Then, a simulation model has been developed for representing the driver behavior at rural roads. Car-following model developed in this study is safety one. Then, lane changing hybrid model has been developed according to the suggested assumptions by previous studies and collected field data to match the real behavior. Gap acceptance model has been adopted from previous studies which show good consistency with real driver behavior through comparing with other characteristics such as lane changing and lane utilization. The developed model has been calibrated with field data and showed encouraging results

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