The survey was held in order to study the effects of toll collection in the central part of the Netherlands (Randstad). Especially on making detours in order to avoid paying toll. Trips through tunnels / frequency of trips / possibilities of alternative transport (public transport) / reasons for travelling / refunding of travelling expenses / preferences for hypothetical transportation possibilities / data on car / commuting / car-pooling. Background variables: basic characteristics/ household characteristics/ occupation/employment/ consumption of durables