The curb zone is where trees, benches, signs, etc., are located, but because sidewalk widths are so constricted, pedestrians must use the curb zone at times. Therefore, curb zone elements should be located so as to minimize congestion.

Where pedestrian traffic is heaviest, sidewalks should be “bulbed out” to accommodate street furnishings such as bike racks, trash containers and newspaper racks. Corner “bulbs” also increase pedestrian visibility.