ناشر تخصصی کنفرانس های ایران

لطفا کمی صبر نمایید

Publisher of Iranian Journals and Conference Proceedings

Please waite ..
Publisher of Iranian Journals and Conference Proceedings
Login |Register |Help |عضویت کتابخانه ها
Paper
Title

Evaluating the Relationship between Operating Speed and Collision Frequency of Rural Multilane Highways Based on Geometric andRoadside Features

Year: 1397
COI: JR_CEJ-4-3_014
Language: EnglishView: 156
This Paper With 11 Page And PDF Format Ready To Download

Buy and Download

با استفاده از پرداخت اینترنتی بسیار سریع و ساده می توانید اصل این Paper را که دارای 11 صفحه است به صورت فایل PDF در اختیار داشته باشید.
آدرس ایمیل خود را در کادر زیر وارد نمایید:

Authors

Behzad Bamdad Mehrabani - MSc. in Transportation Engineering, Faculty of Engineering, Imam Khomeini International University, Qazvin, Iran
Babak Mirbaha - Assistant Professor, Department of Transportation and Planning, Faculty of Engineering, Imam Khomeini International University, Qazvin, Iran

Abstract:

Speed is one of the main functional factors that affect road safety in terms of both collision occurrence and collision severity.Previous studies have shown that several roadside and geometric features affect road safety and operating speed. Thispaper aims to evaluate the effects of roadside and geometric features on operating speed and collision frequency,simultaneously. For this purpose, the operating speed data of 103 segments along with their accident data and roadside andgeometric characteristics were collected. Structural equation modelling (SEM) with latent variables was employed tomodel operating speed and collision frequency, simultaneously. Two latent variables including geometric effect and roadside effect were defined in SEM. The first latent variable is the combination of the natural logarithm of the segmentlength, longitudinal slope, the presence of a 2-meter paved shoulder, and curvature of the segment. The indicators of thesecond latent variable are the number of accesses and the presence of residential land use. The results show that the latentvariable roadside effect increases collision frequency by a standard regression weight of 3.455; however, it reducesoperating speed by a standard regression weight of –0.385. Also, the latent variable geometric effect causes an oppositeeffect on collision frequency and operating speed by the standard regression weight of –5.313 and 0.730, respectively.Besides, lower operating speed causes a reduction in the collision frequency by the standard regression weight of 7.734.The results of this study can be useful for designers and road safety agencies to improve road safety.

Keywords:

Operating Speed; Collision Frequency; Geometric Features; Roadside Features; Structural Equation Modeling

Paper COI Code

This Paper COI Code is JR_CEJ-4-3_014. Also You can use the following address to link to this article. This link is permanent and is used as an article registration confirmation in the Civilica reference:

https://civilica.com/doc/804046/

How to Cite to This Paper:

If you want to refer to this Paper in your research work, you can simply use the following phrase in the resources section:
Bamdad Mehrabani, Behzad and Mirbaha, Babak,1397,Evaluating the Relationship between Operating Speed and Collision Frequency of Rural Multilane Highways Based on Geometric andRoadside Features,https://civilica.com/doc/804046

Research Info Management

Certificate | Report | من نویسنده این مقاله هستم

اطلاعات استنادی این Paper را به نرم افزارهای مدیریت اطلاعات علمی و استنادی ارسال نمایید و در تحقیقات خود از آن استفاده نمایید.

Scientometrics

The specifications of the publisher center of this Paper are as follows:
Type of center: دانشگاه دولتی
Paper count: 6,260
In the scientometrics section of CIVILICA, you can see the scientific ranking of the Iranian academic and research centers based on the statistics of indexed articles.

New Papers

Share this page

More information about COI

COI stands for "CIVILICA Object Identifier". COI is the unique code assigned to articles of Iranian conferences and journals when indexing on the CIVILICA citation database.

The COI is the national code of documents indexed in CIVILICA and is a unique and permanent code. it can always be cited and tracked and assumed as registration confirmation ID.

Support