pacific nw transportation consortium region 10 Pactrans

Connected-Vehicle Traffic Signal System Modeling Platform

PI: Robert Heckendorn (UI), heckendo@uidaho.edu, ORCID: 0000-0001-9756-554X

Co PIs: none

AMOUNT & MATCH: $50,000 from PacTrans; $50,000 Match

PERFORMANCE PERIOD: 8/16/2019 – 8/15/2021

STATUS: Completed

CATEGORIES: Connected Technology, Traffic Signal, Modeling Platform

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DESCRIPTION: This project aims to design and develop a connected vehicle modeling platform to model the operations of traffic signal system in a connected-vehicle environment. The proposed modeling platform has two components.

The first is driver simulator with connected vehicle testing capabilities in which Signal Phasing and Timing (SPaT) messages are communicated from the simulator to the driver through a communication interface. This will allow researchers to test driver response to Spat messages and provide a full assessment of their potential benefits. It will also allow for the testing of different human-infrastructure interfaces in the highly automated connected-vehicle environment.

The second modeling component is a connected-vehicle hardware-in-the-loop microscopic simulation model. In the proposed model from the VISSIM simulation model, will be transformed to a virtual Road Side Unit (RSU) through a Basic Safety Message (BSM) interface. The virtual RSU will transfer the BSM data to a signal timing optimizer processor that is connected to an actual traffic controller. The actual controller will provide the signal status data to VISSIM. This hardware-in-the-loop connected vehicle modeling environment will allow researchers to test different connected vehicle traffic control algorithms using actual traffic control hardware.