A radio-based, GPS emergency vehicle preemption system reduced the average response times by five to seven minutes on a busy corridor.
A successful deployment of a GPS-based preemption system in Savannah, Georgia
In 2007, the City of Savannah deployed a radio-based, GPS traffic signal preemption system for emergency vehicles along the heavily congested corridor on DeRenne Avenue, starting at Montgomery Street through Waters Avenue. The City installed the system at seven east-west signalized intersections, and equipped 41 ambulances from two private ambulance services with GPS radio units and sensors for triggering traffic signals to change. The sensors can trigger a signal change for intersections as much as a mile away.
Prior to deployment, emergency vehicles took up to seven minutes to drive through the DeRenne Avenue corridor. After deployment the ambulances could move through the corridor in just over a minute. Observing this benefit, other emergency services requested that their vehicles be equipped as well. Subsequently, the city expanded the deployment, and in 2010, installed the system at 73 additional intersections and equipped 147 police and fire emergency vehicles with the GPS radio units.
Author: Global Traffic Technologies, LLC
Published By: Global Traffic Technologies, LLC
Source Date: 2010URL: http://www.gtt.com/LinkClick.aspx?fileticket=_vI5bJnmfsI%3d&tabid=39
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Benefit of the Month for October, 2011 !
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preempt, emergency preemption, traffic signals, EVP