Effects of Autonomous Vehicles on Freeway Traffic Performance

A Master of Science thesis in Civil Engineering by Osama Mohamed ElSahly entitled, “Effects of Autonomous Vehicles on Freeway Traffic Performance”, submitted in October 2018. Thesis advisor is Dr. Akmal Abdelfatah. Soft and hard copy available.

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Main Author: ElSahly, Osama Mohamed (author)
Format: doctoralThesis
Published: 2018
Subjects:
Online Access:http://hdl.handle.net/11073/16375
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author ElSahly, Osama Mohamed
author_facet ElSahly, Osama Mohamed
author_role author
dc.contributor.none.fl_str_mv Abdelfatah, Akmal
dc.creator.none.fl_str_mv ElSahly, Osama Mohamed
dc.date.none.fl_str_mv 2018-10
2019-01-17T04:59:33Z
2019-01-17T04:59:33Z
dc.format.none.fl_str_mv application/pdf
dc.identifier.none.fl_str_mv 35.232-2018.27
http://hdl.handle.net/11073/16375
dc.language.none.fl_str_mv en_US
dc.subject.none.fl_str_mv Autonomous Vehicles
Regular Vehicles
average speed
travel time
delay
demand to capacity ratio
Automated vehicles
Traffic engineering
dc.title.none.fl_str_mv Effects of Autonomous Vehicles on Freeway Traffic Performance
dc.type.none.fl_str_mv info:eu-repo/semantics/publishedVersion
info:eu-repo/semantics/doctoralThesis
description A Master of Science thesis in Civil Engineering by Osama Mohamed ElSahly entitled, “Effects of Autonomous Vehicles on Freeway Traffic Performance”, submitted in October 2018. Thesis advisor is Dr. Akmal Abdelfatah. Soft and hard copy available.
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identifier_str_mv 35.232-2018.27
language_invalid_str_mv en_US
network_acronym_str aus
network_name_str aus
oai_identifier_str oai:repository.aus.edu:11073/16375
publishDate 2018
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spelling Effects of Autonomous Vehicles on Freeway Traffic PerformanceElSahly, Osama MohamedAutonomous VehiclesRegular Vehiclesaverage speedtravel timedelaydemand to capacity ratioAutomated vehiclesTraffic engineeringA Master of Science thesis in Civil Engineering by Osama Mohamed ElSahly entitled, “Effects of Autonomous Vehicles on Freeway Traffic Performance”, submitted in October 2018. Thesis advisor is Dr. Akmal Abdelfatah. Soft and hard copy available.Autonomous vehicles (AVs) are smart transportation technologies that have drawn significant attention recently due to their rapid development and promising future. Dubai is trying to promote the use of AVs on its road network as it announced its future strategy to make 25% of its transportation automated by 2030. One of the major challenges that are expected to happen is the interaction between AVs and Regular vehicles (RVs) as the mode share, for AVs (percentage of AVs) would not be 100% in the early stages of adoption, and this interaction is not well-researched so far. The purpose of this study is to evaluate the impact of AVs on freeway traffic performance. The study considers a segment of E311 (Sheikh Mohamed Bin Zayed Road) freeway in Dubai as the test corridor for the study. A microsimulation software (VISSIM) is used to model and evaluate different scenarios. Different traffic demand to capacity ratios are evaluated by considering demand to capacity ratios. The results show that increasing AVs mode share increases the average speed and reduces average travel time and delay. Also, the impact of AVs on freeway performance is higher when the demand to capacity ratio is higher. The minimum effect is achieved when there is a 5% AVs and the demand to capacity ratio is 0.6 while the ultimate case is for 100% AVs and demand to capacity ratio of 1.2. In this case, the increase in speed is about 115%, the reduction in the average travel time is about 1.5%, and the average delay is lower by about 87%. The results obtained in this thesis represent a lower bound of what can actually be obtained, as the considered simulations assumed the lane width and capacity to remain the same. In real applications, more improvements can be achieved by designating some of the road lanes for AVs use only, at high mode shares of AVs. Such lanes have smaller width than regular lanes, which will increase the number of the lanes and road capacity.College of EngineeringDepartment of Civil EngineeringMaster of Science in Civil Engineering (MSCE)Abdelfatah, Akmal2019-01-17T04:59:33Z2019-01-17T04:59:33Z2018-10info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/doctoralThesisapplication/pdf35.232-2018.27http://hdl.handle.net/11073/16375en_USoai:repository.aus.edu:11073/163752025-06-26T12:25:33Z
spellingShingle Effects of Autonomous Vehicles on Freeway Traffic Performance
ElSahly, Osama Mohamed
Autonomous Vehicles
Regular Vehicles
average speed
travel time
delay
demand to capacity ratio
Automated vehicles
Traffic engineering
status_str publishedVersion
title Effects of Autonomous Vehicles on Freeway Traffic Performance
title_full Effects of Autonomous Vehicles on Freeway Traffic Performance
title_fullStr Effects of Autonomous Vehicles on Freeway Traffic Performance
title_full_unstemmed Effects of Autonomous Vehicles on Freeway Traffic Performance
title_short Effects of Autonomous Vehicles on Freeway Traffic Performance
title_sort Effects of Autonomous Vehicles on Freeway Traffic Performance
topic Autonomous Vehicles
Regular Vehicles
average speed
travel time
delay
demand to capacity ratio
Automated vehicles
Traffic engineering
url http://hdl.handle.net/11073/16375