Intelligent traffic light technology that identifies bicycles and buses
and gives them priority over cars and lorries could be rolled out in London.

The “smart” lights, which will be trialled in Milton Keynes next year,
rely on a network of 2,500 cameras installed on roadsides that scan
traffic and recognise different vehicle types.

According to the system’s developers, if cameras detect queuing traffic
containing a large number of buses, bicycles or ambulances – it gives a
longer green light phase than normal.

http://www.standard.co.uk/news/londo...-a3540021.html