Encroachments. In Districts RC, SC, I and MB, pedestrian-oriented features of buildings such as one-story porches, entrance hoods, stoops, awnings, projecting signs, canopies, roof overhangs, and arcades may encroach over sidewalk with a clearance of eight feet and by a distance of five feet. In no case may such encroachments result in an obstruction of pedestrian movement. While cafe space and outdoor dining and retail are encouraged to add street life, a minimum of five-foot-wide pedestrian walkway must be maintained on the sidewalk.