This Library bound "trolley" demonstrates the advantage of light rail over conventional trains; steeper grades and lower maintenance standards for right of way.

One of the Port Authority's new LRVs arrives at the Willow Station on the Overbrook line.

A double set of LRVs leaves downtown Pittsburgh on the Panhandle bridge.

Here 4155 prepares to leave Lytle Station to continue to Library, hence the designation sign.

On the first day of service on the re-opened Overbrook Line, an outbound 47L passes underneath the W&LE's bridge in Castle Shannon.