Traffic management on the Copenhagen Metropolitan motorway network

The TRIM Project involves the creation of a road traffic management system covering a part of the motorways in the Copenhagen Metropolitan Region. TRIM is the Danish acronym for Traffic Management on the Motorways around Copenhagen. The Danish Road Directorate is responsible for the planning, implementation and operation of the entire system. Carl Bro (Denmark and UK) and COWI (Danish) have formed a joint venture consultancy for this project with Dutch TNO and Tecnolution as sub-consultants. The five-county, fifty-municipality Copenhagen Region has some 1.7 million residents and includes the Capital of Denmark as well as headquarters of most of the Danish industries and other organisations, mainly located in or near the city centre. Besides a well developed public transport system, the region has an extensive motorway network consisting of both radials pointing at the centre and two ring motorways, one of them only partially completed. The inner ring motorway, M3, which is located at a distance of 10-15 km from the city centre, connects all the radials and has, on its northern section, the highest load/capacity ratio of all motorways in the region. M3 together with the most densely loaded sections of the remaining network comprises the TRIM network, in total 75 km motorway