ParkKing is a humble attempt to make parking in busy areas a seamless experience. It can help you in three ways: 1. Check on-street parking rules applicable in your vicinity - different colour coding is used to provide a quick visual guide (click on the lines to get rules in more detail) . 2. See where others have indicated availability of an open spot (please use the leave button generously to keep the good karma flowing) . 3. Set alarm to ensure you never overstay and indicate to fellow human beings desperately in need of a parking spot (please use the alarm button generously) .