Parking arrangements should be designed to allow drivers to manoeuvre easily and safely and, where appropriate, to segregate vehicles from pedestrian areas and routes. The manoeuvring ease is a function of aisle and bay widths, which also influence the dynamic capacity of the car park. This is of particular importance for short-stay car parks such as at retail centres where aisle capacities are critical to the operation car park. For longer-stay car parks, this is not so critical; therefore the bay dimensions could be reduced where customers are more familiar with the parking arrangements such as at office or station car parks.
Particular geometric requirements to consider are:
Bay width and length
Aisle width and bin width
Side clearance on structure
Ramp and access-way gradients
Ramp and access-way curvature, widths and clearance on structure
Entry and exit arrangements.