Improving performance of coordinated signal control systems using signal and loop data.
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2010-03-01
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Edition:California PATH Research Report.
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Abstract:In this project, a traffic data collection system based-on the iDEN wireless network has
been developed, lab tested and preliminarily tested in the field. The objective of the
system is to provide a cost-effective and easy-to-maintain system that could still reliably
provide traffic data over the wireless link.
The project team developed an arterial performance measurement method that is based on
the signal infrastructure data collected at PT2 Lab, U.C. Berkeley. The performance of the
proposed model is illustrated by using a simulation study. The six-signal simulation
network covers both heavily congested and light traffic intersections. The proposed
model works well at both the intersection level and the arterial level. Estimation errors of
travel time, number of stops and travel time reliability are insignificant.
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