01590558

Component

https://doi.org/10.3141/2558-09

The study demonstrated the multimodal intelligent traffic signal system (MMITSS) simulation tool to assess the potential effects of a broader MMITSS deployment that would ultimately facilitate the site-independent analysis of MMITSS applications. The study also identified the most beneficial operational conditions for each MMITSS operational scenario by considering a combination of simulation variables and traffic demand levels. The MMITSS simulation platform consists of the Vissim microscopic traffic simulation software, the basic safety message distributor program, an Econolite ASC/3 traffic controller emulator that runs on a Windows platform, and a roadside equipment module that runs on a Linux platform. The study demonstrated that the intelligent traffic signal system reduced vehicle delay by up to 35% and increased average traffic stream speed by up to 27%. In addition, transit signal priority (TSP) reduced travel time for both transit and passenger vehicles on the corridor by up to 29% and 28%, respectively. However, TSP can increase systemwide delay because it reduces green times on the side streets. Freight signal priority (FSP) can be used effectively along major freight routes. Although FSP significantly reduced truck delay, networkwide delay was increased substantially, especially in the scenario with a large percentage of trucks in the traffic composition. The TSP and FSP bundle simulation study demonstrated that the bundle operation successfully executed a hierarchical level of priority and provided higher priority for trucks. MMITSS applications effectively improve vehicle travel time and delay for equipped and potentially nonequipped vehicles, depending on the scenarios considered. Typically, systemwide disbenefits are observed when TSP, FSP, or both are applied.

01618024

16-1141

English

0000-0002-5845-2929

0000-0001-9060-3216

pp 92–102

2016

Transportation Research Record: Journal of the Transportation Research Board

9780309441315

Print

Figures (7) ; Maps; Photos; References (11) ; Tables (2)

Microsimulation; Mobile communication systems; Simulation; Stopped time delays; Traffic signal control systems; Traffic signal priority; Travel time

Intelligent traffic signals

Data and Information Technology; Highways; Operations and Traffic Management; Planning and Forecasting; Public Transportation; Safety and Human Factors; I72: Traffic and Transport Planning; I73: Traffic Control

TRIS, TRB, ATRI

Jan 12 2016 4:31PM

• Arterial Progression Optimization Using OD-BAND
• Assessing Longitudinal Arterial Performance and Traffic Signal Retiming Outcomes
• Automated Turning Movement Counts for Shared Lanes: Leveraging Vehicle Detection Data
• Connected Vehicle–Based Adaptive Signal Control and Applications
• Detector-Free Signal Offset Optimization with Limited Connected Vehicle Market Penetration: Proof-of-Concept Study
• Managing User Delay with a Focus on Pedestrian Operations
• Optimal Cycle-Length Formulas for Intersections With or Without Transit Signal Priority
• Use of High-Resolution Signal Controller Data to Identify Red Light Running