Automotive

Motorcycle taxi ban brings Lagos to a halt

Even before a sudden controversial ban on motorcycle taxis and tricycles in Nigeria's commercial capital, Lagos, crippling traffic jams were a daily ordeal for its more than 20 million inhabitants.

Computer Sciences

Team uses big data to solve bus woes in Brazil

In Fortaleza—the fifth-largest city in Brazil—cars jam the streets, bicycles weave through traffic and bus stops are crowded with passengers who might have to wait much longer than expected to catch their ride.