US-based firm Echelon is to deploy its traffic guidance solution to control traffic at the Elb-Tunnel in Hamburg, Germany.

The traffic system uses LonWorks control technology, which uses embedded light emitting diodes to guide cars through the 3.2km tunnel optimising traffic flow and reducing pollution, according to Echelon.

The system features over 650 electronically controlled LED surface lights connected by Echelon’s i.LON100 Internet Servers to the tunnel operator’s IT infrastructure and control centre allowing it to make real-time decisions about traffic control and system maintenance.

The system has been developed by WHO Ingenieurgesellschaft mbH as a subcontractor of Siemens.

The tunnel is used by about 150,000 vehicles daily.