A revolutionary management concept for modern car parks. The key principles of the SIGNAL-PARK concept, when applied to a busy car park, are simple - but revolutionary. Because, at last, individual places can be constantly (and cheaply) monitored, it becomes possible to market guaranteed and pre-allocated places to the consuming public in real time: for cash or as an incentive. The computer-controlled, SIGNAL-PARK management system alters, instantaneously, specially positioned illuminated signs and indicators, in accordance with changing occupancy: giving instant guidance - visible at a distance of 100 yards.