Adaptive signal control can lower operations and maintenance costs.
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Adaptive signal control systems use algorithms that perform real-time optimization of traffic signals based on current traffic conditions, demand, and system capacity. Adaptive control software adjusts traffic signal splits, offsets, phase lengths, and phase sequences to minimize delay and reduce the number of stops. The extent of benefits depends on several factors including the number and spacing of intersections, the size of study area, demand patterns, levels of nonrecurring congestion, and the type of adaptive control.
Adaptive signal control may also lower operations and maintenance costs associated with traffic signal retiming. Minnesota DOT signal technicians found that an adaptive signal control system was easy to operate and required minimal maintenance.
Author: Joseph Sussman, et al. (MIT)
Published By: Federal Highway Administration, U.S. DOT
Source Date: December 2000
EDL Number: 13316
Other Reference Number: Report No. FHWA-OP-01-006URL: http://ntl.bts.gov/lib//jpodocs/repts_te//13316.pdf
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traffic signals, adaptive signals