Motorists use automobiles and motorbikes to move around the city. These vehicles can be used as for-hire vehicles (taxis), shared vehicles (car share and car pool), or personal vehicles. While these uses have different curbside needs, they have similar geometric needs and are addressed together in this section.
Traditionally, personal motorized vehicles, and particularly automobiles, are a major consumer of street space. Vehicles occupy space when moving in travel lanes and in on-street parking spots. When street space is unpriced or unrestricted, congestion emerges, increasing travel times and pollution, reducing space for other uses, and negatively impacting livability.
Travel lanes for motorists are often mixed facilities shared by cars, buses, and cycles. They are frequently complemented with curbside parking spaces, curb zone facilities such as parking meters, intersection elements such as stop lines and traffic signals, and wayfinding and speed signs across the corridor for navigation and compliance.
Personal motor vehicles are often restricted on various corridors such as pedestrian zones, transit streets, and at times on shared streets.