The City Of Portsmouth (New Hampshire) already has an official website and Twitter feed to keep visitors updated about availability in the parking garage. This website exists to make it easier (and possibly faster) to get the current status of parking garage availability.
While distracted driving is never a good idea, the unfortunate reality is that many individuals will attempt to seek this information while driving. This website may be the better option, as current status can be determined with a quick glance.
The status message displayed by this website is determined by the most recent tweet published by the official @ParkPortsmouth Twitter feed.