The Philadelphia and Western Railroad was a high-speed, third rail-equipped, commuter-hauling interurban electric railroad operating in the western suburbs of the U.S. city of Philadelphia, Pennsylvania. It is now SEPTA's Norristown High Speed Line, though the Strafford spur has been abandoned. Part of the abandoned line within Radnor Township is now the Radnor Trail, a multi-use path or rail trail.