Traffic signal changes just a matter of time

In a sign of changing times, the timing of traffic lights for almost three dozen intersections will be adjusted in a response to developing traffic patterns in the area.

In a project that started yesterday, 34 intersections will be retimed to improve more efficient traffic flow. In Butler County, the new signal patterns will be installed in Cranberry, Adams, and Seven Fields, in addition to Marshall in Allegheny County. Eight of the intersections will also be receiving new sequencing.

Print companies can play a part in explaining changes made to improve traffic flow, such as changing traffic light timing and lane additions or repurposing.

A grant obtained via through the Southwestern Pennsylvania Commission’s Regional Traffic Signal Program, in the amount of $139,350, was applied to a detailed analysis of each intersection. Data collected included recent crash history, vehicle counts, wait time at key intersections, and travel times. Once the data was gathered, it was put into a computerized model to determine the optimal traffic signal timing.

Cranberry will be upgrading signals with a timing system programed for traffic demand beginning in the spring. Monies for this will come from the nearly $37.5m provided to the township by the Pennsylvania Automated Red Light Enforcement fund.

Last year, Cranberry Township also received two other grants, which together totaled $1.5m to put towards installing an additional eastbound lane on Route 228, where traffic is particularly heavy.
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