As of December 26th 2005, SEPTA has completed the project what entitles the installation of traffic light sensors which has been placed above most of there buses. These sensors will keep the light green at 15 intersections. This also includes the major intersection at 52nd and Lancaster Ave. SEPTA hope that these systems will minimize the number of delays and to improve the flow of traffic along 52nd street. You can learn more about these features from here http://www.septa.org/travel_advisory/route52.pdf.