Evaluation of Variable Message Signs in Managing Freeway Incidents Using Simulation
Evaluation of Variable Message Signs in Managing Freeway Incidents Using Simulation

Author: Jeff Gerard Gerken

Publisher:

Published: 1998

Total Pages: 118

ISBN-13:

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The diversion decision process was used to determine the timing of traffic diversion and signal timing alterations on the diversion routes in an effort to reduce total network delay. A case study was used to evaluate the effectiveness of VMS compared to a baseline scenario and other diversion decisions based on experience. For the case study used, VMS reduced total delay by 21 percent over baseline conditions and 17 percent reduction in total delay compared to other diversion decision processes.

Evaluation of Dynamic Message Signs and Their Potential Impact on Traffic Flow
Evaluation of Dynamic Message Signs and Their Potential Impact on Traffic Flow

Author: Ali Ebadollahzadeh Haghani

Publisher:

Published: 2013

Total Pages: 102

ISBN-13:

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Maryland State Highway Administration (SHA) has a rich data archive of the messages posted to the Dynamic Message Signs (DMS) and the time stamps when they were posted and taken down. The archive also contains traffic information surrounding the DMS signs, such as traffic volumes and speeds from various point or probe-based sensors. In this project, the research team used this data archive to study the impact of DMS messages on traffic conditions. Multiple Bluetooth sensors were deployed on a major travel corridor in the Baltimore Metropolitan Area to determine vehicle travel times and to monitor traffic diversions.