Space is critical in areas of high commercial and demographic
concentration such as city centres. In Europe parking places are
normally regulated by using blue zones (regulation of space and
waiting time) and public car parks (regulation by fee), which can
be located either on the surface or underground. Rather than being
profit orientated, policies for regulating street parking should be
aimed at improving traffic flow, favouring the rotation of parking
spaces and freeing up areas for loading and unloading at certain
times. Therefore, when new urban projects are started, such as
shopping centres, cinemas or buildings for other leisure activities,
any public and private projects should include a study on the need
for parking places and their probable effects on traffic flow in and
around the site location