Integrated Construction Zone Traffic Management

Michael Zhang, Wei Shen, Yu Nie and Jingtao Ma

Institute of Transportation Studies, Research Reports, Working Papers, Proceedings from Institute of Transportation Studies, UC Berkeley

Abstract: Nonrecurrent traffic congestion caused by construction work constitutes a large proportion of the traffic congestion on highways. In TO 5300, we developed a comprehensive work zone traffic impact assessment procedure using a series of state-of-the-art dynamic network analysis tools as building blocks. This procedure is then implemented into a work zone traffic impact assessment software package called NetZone. This software package is capable of estimating time-dependent travel demand based on link counts, estimating demand diversion in response to work zone delay and various traffic management measures, showing traffic congestion level in the network over time, and providing network wide traffic performance measures with and without traffic congestion mitigation measures. The traffic performance measures provided in NetZone include average and longest delays, average and longest queue lengths, as well as the total delay in the network, before and during construction. Moreover, a friendly graphical userinterface makes NetZone easy to learn and use, and a preliminary case study shows that one canuse it to study a reasonably large network in a fraction of time that a micro-simulation package takes for the same network. The developed methods and tools can help better plan and operate construction activities on highways, and more effectively manage traffic to reduce travel delays, both are consistent with Caltrans’s goals of increasing productivity and safety.

Keywords: Engineering; Rehabilitation; construction work zone; traffic impact; work zone traffic man-agement; NetZone; traffic congestion; peak spreading; traffic diversion; traffic simulation (search for similar items in EconPapers)
Date: 2008-06-01
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