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Mobile apps reshape urban taxi landscape

Peter Faris, CEO of Szabo Faris LLC Transportation Solutions, stands in front of one of his vehicles while holding a smart phone with an app that orders up his sedan service February 14, 2013 in Washington, DC. Faris, an independent driver who works with Before the smartphone, riders summoned a taxi by waving an arm or calling a dispatcher -- but mobile apps are changing that, helping both drivers and passengers. A number of new services have sprung up in recent years that enable smartphone users to locate and request taxis with GPS.