Pay and Display Parking Meter - in reference to Parking Meters ; a parking meter system that requires the parker to purchase a ticket and place it on the vehicle dashboard or window.

Pay by Space Parking Meter - in reference to Parking Meters ; synonymous with Pay by Stall ; a parking meter parking system that requires the user to input a unique parking stall number into the parking meter.
This parking meter system has the advantage of not having to have the parker to place the ticket on the windshield of the vehicle, all data is stored within the parking meter. Also, pay by stall has the advantage of easing the enforcement of parking. The meter maid can ask any machine for a expired stall report. The meter maid can therefore concentrate on handing out tickets instead of looking at tickets through windshields.

Pay by Stall Parking Meter - in reference to Parking Meters ; synonymous with Pay by Space ; a parking meter parking system that requires the user to input a unique parking stall number into the parking meter.
This parking meter system has the advantage of not having to have the parker to place the ticket on the windshield of the vehicle, all data is stored within the parking meter. Also, pay by stall has the advantage of easing the enforcement of parking. The meter maid can ask any machine for a expired stall report. The meter maid can therefore concentrate on handing out tickets instead of looking at tickets through windshields.