InSync's Performance

Upper Merion, PA


Upper Merion, Pennysylvania (Route 202 DeKalb Pike)


Pennsylvania Department of Transportation and Upper Merion Township





Contact Info

Ashwin Patel, P.E., Traffic Engineer, Pennsylvania DOT or 610.205.6567

Length of Corridor

1800 Ft

Deployment Date

April 2011

InSync Type

InSync standard


Unpredictable fluctuations in traffic volume, freeway interchange and high pedestrian volume

Previous signal management

Coordinated timing plans

PennDOT strategically deployed InSync at two intersections on the perimeter of the King of Prussia Mall, one of the nation’s largest shopping centers. The traffic signals’ existing coordinated timing plans, installed only two years before InSync, was inadequate in that the queue of vehicles was often so long that vehicles had to wait through multiple cycles before moving through the intersection. As the report from Pennoni Associates verifies, the use of InSync dramatically changed these traffic conditions. By using video detection and its built-in artificial intelligence, InSync adapts signalization to actual demand, allowing queues of vehicles to clear quickly and completely every time. In addition to delighting motorists, the improved traffic flow earned the project the 2012 Road and Bridge Safety Improvement Award. Upper Merion Township has since decided to expand its InSync deployment by 12 more intersections.


Daily Benefit Annual Benefit
Vehicle Hours of Travel
142 hours 36,900 hours
Fuel Consumption
106 gallons 27,563 gallons
6,246 stops 1,623,870 stops
Total Economic Benefit $3,059 $795,405

Estimated benefit calculations are based on an ADT of 47,000 vehicles and an assumption that the change impacts 34% of the ADT.  The 34% multiplier was used as that portion of the ADT is present on the corridor during the days and times studied; actual benefits are likely far greater as more than 34% of motorists experience the benefits of InSync.



in stops


reduction in
travel time


in delay


in emissions


increase in
average speed


reduction in
fuel usage

Measures  of Effectiveness

Data and Independent Study by

Pennoni Associates


Existing signal timing data collected June 2010 (temporarily reverted to previous timing plan); InSync deployed April 2010; InSync results data collected May 2010

Download Case Study and MOEs

Download Independent Study

 InSync Type

InSync Standard

Detection Type

InSync Video

Cabinet Type


Controller Type


Connection Type

Detector Cards

This InSync deployment received the 2012 Road and Bridge Safety Improvement Award from the Pennsylvania DOT, PA Highway Information Association and PA State Association of Township Supervisors. Read More





InSync Vastly Improves Traffic in Philadelphia Suburb

The township is experimenting with a new adaptive traffic control system at a few major intersections, designed to improve the flow of traffic during rush hour.(…) “A study we did saw that it improved traffic capacity,” said Township Manager Ron Wagenmann. “As a result, they found, during peak hours, that traffic was improved at the intersection by about 40 percent.”

Read More

InSync to Ease Congestion on Rt. 202, King of Prussia, PA

Soon-to-be installed adaptive traffic signals [InSync from Rhythm Engineering] along DeKalb Pike (Rt. 202) will help alleviate traffic congestion and improve traffic flow on one of King of Prussia’s busiest roadways. Get ready to see those green lights!

Read More

Adaptive Traffic Signals, Improving Dekalb Pike

Project Highlight

PennDOT strategically deployed InSync at two intersections on the perimeter of the King of Prussia Mall, one of the nation’s largest shopping centers.

InSync is a traffic engineer’s dream…  the intersection works fully actuated and accommodates all movements in an efficient manner while also maintaining progression along the corridor, it’s the best of both worlds.