Types and descriptions of traffic calming devices are available for review within the Design Guidance section of the Baltimore Complete Streets Manual. Options for traffic calming devices include:speed humps, speed tables, and speed cushions; curb extensions, also known as bump-outs or bulb-outs; rumble strips; hardened centerline treatments; raised crosswalks; raised intersections; chicanes; mini-roundabouts, also known as neighborhood traffic circles; traffic signal timing and operations; vehicle access restrictions, such as median diverters; traffic signal timing and operations; reduction in travelway width; reduction in number of through or travel lanes; Slow Streets treatments; any combination of these devices; other available treatments or devices.