Alexandria Transit Company

ALEXANDR I A TRANS I T COMPANY Alexandria Transit is also already using a technology called Transit Signal Prioritization (TSP). It’s a method used to help get buses through traffic congestion, a situation that is becoming more common throughout the transit industry. As Barna clarifies, “You can design the best service, have it running frequently into places people need to go, but then be caught up in traffic. Then your bus service is limited in its usefulness. There are several ways that buses can be prioritized over single occupant vehicles, such as bus-only lanes. Another lower-cost option is TSP, which requires special equipment to be installed on the bus as well as the traffic signal. The signal is then able to identify when a bus is approaching. It can adjust its green cycle to turn slightly earlier or extend a bit longer to help the bus get through traffic quicker. DASH is currently utilizing TSP technology from GTT Opticom at 24 intersections, thanks in part to a demonstration grant from DRPT. We’re collecting data on how frequently they’re being used and