The 3-second rule: Philadelphia is giving Center City buses a teeny jump start at intersections

Skipping in line is a rude move, but for SEPTA, it may actually be a way to improve bus service.

That’s why the transit agency and the City of Philadelphia are testing a new traffic signal at the corner of 15th and Market streets designed to give buses a three-second head start over traffic.

It’s called a queue jump signal and is already used for trolleys. Officials hope that bringing the signals to busy bus corridors will help improve service and ease congestion in increasingly traffic-jammed Center City.