The NATO vehicles then turned around and drove back along a transit road through government territory into the Serb suburbs, followed by several dozen empty trucks.

CNN: Police to take over Serb-held suburb

"The traffic lights can talk to cars, work out how long it's going to take to transit a road and then provide information back on what speed to travel to ensure that you pass through the traffic lights on green, " he said.

BBC: Green light sat-nav trialled in Newcastle

Devon and Cornwall Police said the pedestrian was struck by the marked Ford Transit in New Road, Bideford, while it was on routine patrol at about 19:15 GMT on Wednesday.

BBC: Pedestrian badly injured by police van in Bideford