Abstract
Motorcycle parking design practices in the United States and abroad are investigated. Numerous agencies and jurisdictions have developed codes and policies on stall and bay dimensions, motorcycle-to-automobile parking space ratios, parking demand rates as a function of land use, and motorcycle–automobile equivalence factors, but the values in use lack consistency. This paper suggests that stall dimensions be based on regional assessments of the sizes of motorcycles being driven. The number of motorcycle parking spaces provided should be developed from demand surrogates, such as total motorcycle registrations and motorcycle registrations as a percentage of noncommercial vehicle registrations. The following are recommended when motorcycle size data are not available: a 5-ft (1.5-m; alternatively 7.5-ft or 2.3-m for the disabled) × 8.2-ft (2.5-m) stall and 60° parking angle (90° in low-traffic environments). The development of uniform motorcycle parking signs should be considered, to inform motorcyclists of legal parking locations. The installation of rails, hoops, or posts adjacent to parking stalls for motorcycle security is also recommended.
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