What are the standard dimensions for parking space design?

[OGeorge]

According to the "Specifications for Setting On-Street Parking Spaces on Urban Roads," the standard dimensions of general parking spaces are determined based on vehicle size. Small parking spaces typically measure 2.5~2.7 meters in width and 5~6 meters in length. The width of a single-lane turning lane should not be less than 3.5 meters, while a double-lane should be at least 5 meters. The turning area should accommodate a vehicle's one-time turning needs, and for safety or to accommodate medium and large vehicles, it is often set to 6 meters or more. Details are as follows: (Length ≤ 6m, width ≤ 1.8m) vehicles: The spacing between vehicles should be no less than 0.5 meters, and the spacing between vehicles and walls or the ends of parking spaces should also be no less than 0.5 meters. (6m < length ≤ 8m, 1.8m < width ≤ 2.2m) vehicles: The spacing between vehicles should be no less than 0.7 meters. Small vehicle parking space: Length ≥ 5 meters, width 2.2-2.5 meters. Large vehicle parking space: Length 7-10 meters, width 4 meters, depending on the specific vehicle model. According to the "Code for Design of Garage Buildings," the dimensions for small car indoor parking spaces are as follows: The design dimensions for small cars are 4.8m (length) x 1.8m (width) x 2.0m (height). For perpendicular parking, the minimum parking space size should be 5.3m (length) x 2.4m (width), with a minimum driveway width of 5.5m at the front. The minimum distance between small cars and side walls should be 0.6m, and the minimum distance to front and rear walls should be 0.5m. Modern underground garages have large floor areas and numerous parking spaces. To ensure smooth vehicle movement, driveways are planned to be relatively wide. Driveways, as horizontal passages dedicated to parking spaces, account for a significant portion of the allocated floor area, often 50% or more of the total parking space area. Parking space arrangements can be divided into three types: parallel, angled (30°, 45°, 60°), and perpendicular. Large vehicle parking spaces should not use angled or perpendicular arrangements. Details are as follows: Parallel parking space: Standard length is 6 meters, width is 2.5 meters. Angled parking space: Diagonal length should be 6 meters, width 2.8 meters, with a vertical distance of 2.5 meters between the two diagonal lines. Perpendicular parking space: Length ≥ 5 meters (typically 6 meters), width 2.5 meters. The optimal standard size is 2.5m x 5.3m. The "Road Traffic Safety Law" stipulates that on-street parking spaces should not be set on roads with a width of less than 6 meters, nor on crosswalks, expressways, or main roads. On urban roads, government authorities may designate parking spaces where pedestrian and vehicle traffic is not obstructed. On-street parking should not interfere with non-motorized vehicle traffic or occupy their space. Parking spaces should not be set near intersections, building entrances, or bus stops. Parking regulations, including vehicle types and time limits, should be clearly marked. Measures should be taken to prevent private occupation, such as prohibiting ground locks. Facilities like barriers or posts may be installed on no-parking roads. After removal, parking signs and markings should be promptly erased to prevent illegal parking. Additionally, on-street parking should not be set within 200m~300m of off-street public parking lots. Quantitative regulations for on-street parking spaces: The "Specifications for Setting On-Street Parking Spaces on Urban Roads" provide quantitative rules based on road width. For two-way roads: if the actual width exceeds 12 meters, parking spaces may be set on both sides; between 12m and 8m, on one side; below 8m, not allowed. For one-way roads: if the actual width exceeds 9 meters, parking spaces may be set on both sides; between 9m and 6m, on one side; below 6m, not allowed. For disabled parking spaces, the specifications require that they account for at least 2% of total parking spaces, with a minimum of one space if there are 20 or more total spaces. Parking space marking colors: White: Paid parking spaces; Blue: Free parking spaces; Yellow: Reserved parking spaces; Time-limited parking spaces: Dashed borders (10cm line width) with permitted parking times marked inside (60cm numeral height). Disabled parking spaces: Special markings with yellow grids on both sides indicating no-parking zones for boarding/alighting. Other vehicles must not occupy these spaces. The yellow grid lines should be 120cm wide, with 20cm outer lines and 45° angles, matching the length of the parking space. On-street parking spaces should not be set in the following areas: Fire lanes, sections with no-parking signs/markings, or construction zones obstructing traffic; Roads designated for disaster relief or emergency evacuation; Sidewalks (if set, must not block tactile paving); Near building entrances; Intersections, railway crossings, sharp curves, narrow roads (<4m), bridges, steep slopes, tunnels, or within 50m of such locations; Within 30m of bus stops, emergency stations, gas stations, fire hydrants, or fire stations (except for authorized use); Within 20m of intersection channelized areas; Near underground utility access points or within 15m of such locations; Within 200m of off-street parking lot entrances.