Chris McCahill. Factors Affecting Residential Parking Occupancy in Madison, Wisconsin. Vol. 2651, no. 1, Transportation Research Record: Journal of the Transportation Research Board, 2017, pp. 71-79.
Working with the City of Madison, Wisconsin, SSTI staff led a study of multifamily residential parking use throughout the city and analyzed factors affecting its use.
The study focused in on several key factors–population density, walking accessibility, unit size, and parking price–which explain most of the variation in parking demand. It also revealed the maximum parking demand is only around 1.4 spaces per residential unit and that only two-thirds of existing parking is used, which is consistent throughout the city.