Abstract
A great number of sub-surveys has been carried out after the effects on traffic of the Groningen Traffic Management Scheme. Taking everything at a glance one can state that the main objective of the TMS, viz. a restraint of motor car traffic in the inner city, has been accomplished to a great extent (-47% for passenger cars), whereas car accessibility of the city centre has only been slightly affected. Motor car trips with origin or destination within the inner city decreased by only a small percentage.