Samenvatting
Early 1982 in Amsterdam a planning group "line wise approach" was set up.This planning group had the task of improving the through-put of tramline 12 by means of simple measures concerning traffic lights.This paper gives an account of the working method, the covering research and the results.The evaluation shows that it is possible by the use of simple measures and with low costs, to reduce the total driving time and improve the level of service.