Performance Evaluation of Transit Signal Priority in Multi-Directional Signal Priority Request Situations

Simple item page
dc.contributor.authorKompany, Kianoushen
dc.contributor.committeechairAbbas, Montasir M.en
dc.contributor.committeememberFlintsch, Gerardo W.en
dc.contributor.committeememberTrani, Antonio A.en
dc.contributor.departmentCivil and Environmental Engineeringen
dc.date.accessioned2017-06-28T08:00:12Zen
dc.date.available2017-06-28T08:00:12Zen
dc.date.issued2017-06-27en
dc.description.abstractRing Barrier signal controller in VISSIM traffic simulation software provides different options for configuring Transit Signal Priority. This controller emulator allows for considering arterial progression by Priority Progression parameter; preferring specific transit signal priority calls to other calls by Priority Level feature; providing more green split to the signal priority phase by Green Extension attribute. This study aims to evaluate the impact of these three parameters on the performance of transit signal priority. The study area is based on three signalized intersections of Prices Fork Road in Blacksburg, Virginia. A total of five transit lines are assumed to request signal priority. Green Extension and Priority Level were found to have significant influence on bus delays, whereas bus frequency is not a significant variable to affect TSP effectiveness (for reducing the transit delays). This study also aims to identify the traffic conditions in which the adaptive feature of VISSIM Ring Barrier Controller can be most useful. Detector Slack, Detector Adjust Threshold, and Adjust Step are the parameters that should be hardcoded in the controller for activating the adaptiveness feature. The study area (Prices Fork Road in town of Blacksburg, VA) incorporates five bus lines are assumed eligible to request priority. This study revealed that transit service overlap can enhance or exacerbate each bus performance when transit signal priority is implemented, depending on the scheduled headways and the frequency of signal priority requests in each intersection.en
dc.description.degreeMaster of Scienceen
dc.format.mediumETDen
dc.identifier.othervt_gsexam:11719en
dc.identifier.urihttp://hdl.handle.net/10919/78271en
dc.publisherVirginia Techen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectTransit Signal Priorityen
dc.subjectVISSIM Ring Barrier Controlleren
dc.subjectGreen Extensionen
dc.subjectPriority Progressionen
dc.subjectPriority Levelen
dc.subjectDetector Slacken
dc.subjectDetector Adjust Thresholden
dc.subjectAdjust Stepen
dc.titlePerformance Evaluation of Transit Signal Priority in Multi-Directional Signal Priority Request Situationsen
dc.typeThesisen
thesis.degree.disciplineCivil Engineeringen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.levelmastersen
thesis.degree.nameMaster of Scienceen

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
Kompany_K_T_2017.pdf
Size:
1.89 MB
Format:
Adobe Portable Document Format
Download

Collections

Masters Theses