Metro

An Uber ride-hailing car

Study Finds the Color of Ride-Hailing Is Not Green

Hamburg, Germany

Coming to Hamburg: Blazing Fast 5G Train Control

Boston skyline at night

MBTA Moves to Blur Line Between Commuter Rail and Rapid Transit

The light rail moves through Plaza Maua in Rio de Janeiro, Brazil, in this Thursday, July 7, 2016, file photo. (AP Photo/Silvia Izquierdo)

Final Segment of Rio Light Rail Network Opens for Service

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