Benefit

Implementation of an adaptive signal control system in Anaheim, California resulted in travel time changes ranging from a 10 percent decrease to a 15 percent increase.


July 1999
Anaheim; California; United States


Summary Information

Anaheim, California is an urban area with a population of 300,000. Within a 3 square mile area of the city there are 4 major event centers having a combined maximum attendance of 200,000 people. This study evaluated the implementation of the Split Cycle Offset Optimization Techniques (SCOOT) adaptive signal control system on a traffic signal network surrounding two of these event centers. The study used a before and after approach, with 10 observations before the implementation and 10 after. Travel times were determined using the floating-car technique on 5 routes before and after implementation. The study evaluated the ability of SCOOT to function using existing mid-block loop detectors rather than standard upstream intersection detection.

The change in travel times for the routes in the study ranged from a decrease of 10 percent to an increase of 15 percent. More circuitous routes involving more of the SCOOT system saw travel time changes ranging from a 2 percent reduction to a 6 percent increase. The relative performance against the baseline system was better when there were no events at the centers being studied.

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Source

Evaluation of the Anaheim Advanced Traffic Control System Field Operational Test: Introduction and Task A - Evaluation of SCOOT Performance

Author: Moore, James E., II, et al.

Published By: California PATH Program, University of California

Source Date: July 1999

EDL Number: 13066

Other Reference Number: Report No. UCB-ITS-PRR-99-18

URL: https://rosap.ntl.bts.gov/view/dot/2375

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Goal Areas

Mobility

Typical Deployment Locations

Metropolitan Areas

Keywords

planned special events, traffic signals, adaptive signals

Benefit ID: 2000-00128