On-street parking is a valuable community resource that is not exclusive to residents of a street. It is not considered appropriate to prevent all non-residential parking in residential streets, particularly during the day when residential parking demand is usually low.
Parking is a shared resource and can be used by other local needs such as schools, parks and reserves, businesses and public transport commuters. Banning non-resident parking on both sides of the street may simply transfer parking demands to other locations.
In order to provide a fair balance of the competing needs in local streets, parking restrictions are used to generally confine non-resident parking to one side of the street only. Only residents (conditions apply) and their visitors will be exempt from the restrictions, by the use of permits.