The team headed by Larry Head from University of Arizona used algorithms and optimisation with traffic signal controls and wireless apparatus to handle the traffic signals in the US city of Phoenix.

“Motorists communicate on smartphones with individuals around the world, but their automobiles cannot convey with autos around the corner. That’s about to transform,” Head said.

Along the test ride, the bus computed how long it’d take to reach the signs, received messages from traffic signals and sent requests for service back to the signs.

Using the algorithms the signs prioritized coming vehicles: crisis, transit, passenger and commercial. At one junction, for instance, path was cleared for a fire truck and got the green light. The monitor also alarmed of approaching building and school zones the bus.