Abstract
The "Openbaar Vervoerkaart" has been used by a number of persons for a trial period of a year. The ticket allowed unrestricted travel by all means of public transport for a low price. Making the ticket available to the general public would lead to a large increase in the demand for public transport. Railway passenger kilometres would even double. As a result, the public transport deficit would increase by 700 to 900 million guilders a year (decrease of receipts and increase of running costs).