InSync's Performance

Improving Road Safety

Crash data from police agencies in multiple states show InSync measurably improves roadway safety.  By reducing vehicle stops, delay and travel time, InSync reduces the potential for conflict and thus prevents crashes and saves lives.

Dangerous conditions that increase the chance for accidents don’t exist on InSync roads.  These include stop-and-go congested traffic or poorly timed traffic signals that appear to the motorist as a sudden yellow light that encourages red-light running.

Preliminary Safety Results

Deploying Agency InSync Intersections Annual Crash Reduction* Annual Crash-Related Savings*
Columbia County, GA 5 26% $1,164,702
City of Topeka, KS 7 24% $942,854
Missouri DOT 12 17% $1,247,895
City of Lee’s Summit, MO 8 15% $360,503
City of Springdale, AR 8 30% $526,889

*See InSync safety report for a detailed explanation of these calculations.

City of Springdale, AR

The City of Springdale, Arkansas installed InSync at 9 intersections along Thompson/71 in April 2010. A report generated by the Springdale Police Department of crash data for 12 months before and 12 months after the InSync installation showed

InSync reduced crashes on the corridor by 30%.

City of Topeka, KS

The City of Topeka, Kansas installed InSync at 7 intersections along 21st Street. Linda Voss, city traffic engineer, reported there were 142 accidents and 143 accidents respectively in the two years before InSync was deployed and an average of 108 accidents in the two years after deployment.

This translates into a 24% crash reduction.

Columbia County, GA

Columbia County, Georgia installed InSync at 5 intersections along Washington Road. County staff reported there were 162 accidents in the 12 months before InSync was deployed and 120 accidents in the 12 months after InSync was deployed,

translating into a 26% crash reduction.

Missouri Dept. of Transportation

The Missouri DOT installed InSync at 12 signals along Highway 291 in Lee’s Summit (Kansas City area). The corridor had been retimed frequently yet remained congested. MoDOT district staff felt confident no significant improvements could be made by retiming the signals yet again.

The state deployed InSync, resulting in a 17% reduction in accidents.

City of Lee’s Summit, MO

The City of Lee’s Summit, Missouri installed InSync at 8 intersections along Chipman Road. The city won two awards for their InSync deployment: the Excellence in Transportation Award from the Kansas City Chapter of ITE (2010) and an ImpacT Award for its positive environmental impact from the Kansas City Business Journal (2011).

In the first six months, InSync reduced crashes by 13% as compared to the previous coordinated timing plan.


Winner, 2012 Road & Bridge Safety Improvement Award

Winner of the 2012 Road and Bridge Safety Improvement Award

Three Pennsylvania organizations (PA Highway Information Association, PennDOT and PA State Association of Township Supervisors) jointly selected the Rt. 202 / DeKalb Pike Adaptive Traffic Signal Project—a deployment of InSync—as Winner of the 2012 Road and Bridge Safety Improvement Award. InSync is used to manage fluctuating traffic volumes generated by the King of Prussia Mall, the largest shopping mall on the East Coast of the U.S., resulting in an average daily traffic of approximately 40-50,000 vehicles per day. By reducing vehicular queuing at intersections, this Upper Merion Township, PA adaptive deployment prevents accidents and improves safety.

“In West Des Moines, one of our largest types of crashes is rear-end crashes where people are stopped at traffic signals. When they have to start again, they bang into the back of somebody else. I see the number of rear-end crashes going down on the corridors where we have InSync mainly because we’re keeping traffic moving. They’re not having to stop as much, so that’s going to reduce our number of rear-end crashes in the future.”