Street Design Manual

3.2.5 B - Alley, Residential (Private) Residential alleys can provide access to accessory housing units and rear-entry parking, as well as provide a location for utilities and services such as garbage removal if built to street standards to support those types of vehicles. They vary in total width from 16 to 20 feet. Alleys can also provide shortcuts for pedestrians and cyclists. Because of their relatively low traffic volumes and vehicle loads, Residential Alleys often can accommodate GSI practices such as permeable pavement and alternative curb systems.

Raleigh Street Design Manual – Page 27