December is dedicated to the urban traffic. The increased mobility generates polution and risks for all traffic partners. The stimulation of the traffic demand strengthens a new culture in urban development: The car!. Answers how to reduce the problems generated by the demand of this culture are presented in the information of the month: Congestion charging in the big cities – London. The case does not present hard investment solutions, but tackle directly the car culture, through soft methods aimed at controlling and inhibit the demand for private traffic (Source: 2006, Habitat Debate, vol.12, no.1, UN-Habitat, website: www.unhabitat.org).