Sponsor
Portland State University. Department of Civil and Environmental Engineering
First Advisor
Christopher M. Monsere
Date of Award
2014
Document Type
Project
Degree Name
Master of Science (M.S.) in Civil & Environmental Engineering
Department
Civil and Environmental Engineering
Language
English
Subjects
Signalized intersections -- Evaluation, Electronic traffic controls -- Evaluation, Trucks -- Routes -- Oregon -- Portland, Freight and freightage -- Oregon -- Portland, Transportation corridors -- Oregon -- Portland, Pavements -- Performance, Traffic safety
DOI
10.15760/CEEMP.31
Abstract
Given the importance of over growing freight transportation system worldwide, engineers and planners are faced with the challenge of improving freight service in urban area using low cost measure. Truck Signal Priority is one of the strategy that can be used to improve operational efficiency with enhance safety benefits (red light running) of freight service, without major capital investment. In light to this interest this study focus on evaluating the impacts of freight signal priority on a high truck density intersection like N Columbia Blvd and NE Martin Luther King Jr. Blvd. Using a simulation tool, VISSIM, these impacts were assessed considering a eleven second of green time extension for priority strategy.
Results from this simulation analysis indicated that the given priority from the green time extension strategy in higher truck traffic approach can ensure service reliability, reduce red light running, and improve safety and smoother operations with little to no impact on other vehicular traffic. Overall travel delay and stop delay has improved 13% and 20% for truck traffic, while minimum to no impact on travel delay for other vehicles in the approach. Priority also improved carbon emission and reduced pavement damage by reducing trucks stop 9% to 16% at major truck moving direction, while minimum or no impact to all vehicles stops in that approach.
This study can serve as groundwork for the evaluation of truck signal priority for agencies and researcher, future research can build upon this effort. Areas identified for future research include the provision of priority on truck leading approach on a coordinated signal system network; testing other priority strategies; combination of emergency preemption and freight preemption; monetary and environmental benefit from priority received network.
Rights
©2014
In Copyright. URI: http://rightsstatements.org/vocab/InC/1.0/ This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s).
Persistent Identifier
http://archives.pdx.edu/ds/psu/12502
Recommended Citation
Mahmud, Maisha, "Evaluation of Truck Signal Priority at N Columbia Blvd and Martin Luther King Jr. Blvd Intersection: VISSIM Micro Simulation Analysis of Truck Signal Priority" (2014). Civil and Environmental Engineering Master's Project Reports. 5.
https://doi.org/10.15760/CEEMP.31
Comments
A research project report submitted in partial fulfillment of the requirement for the degree of Master of Science in Civil and Environmental Engineering.