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 vehicle spaces typically measure 2.5~2.7m × 5~6m, with single-lane turnaround lanes requiring a minimum width of 3.5m and dual-lanes needing at least 5m. Turnaround sections should accommodate single-vehicle U-turns, and for safety or medium/large vehicles, spaces are often set at 6m or more. Details are as follows: For vehicles (length ≤ 6m, width ≤ 1.8m): The minimum spacing between vehicles should be no less than 0.5m, and the distance between vehicles and walls or space ends should also be no less than 0.5m. For vehicles (6m < length ≤ 8m, 1.8m < width ≤ 2.2m): The minimum spacing between vehicles should be no less than 0.7m. Small vehicle parking space: Length ≥ 5m, width 2.2-2.5m. Large vehicle parking space: Length 7-10m, width 4m, depending on the specific vehicle model. According to the "Architectural Design Code for Parking Garages", the dimensions for small vehicle indoor parking spaces are as follows: The designed outer dimensions for small vehicles are 4.8m(length) × 1.8m(width) × 2.0m(height). For perpendicular parking, the minimum parking space size should be 5.3m(length) × 2.4m(width), with a minimum driveway width of 5.5m at the front. The minimum distance between small vehicles and side walls should be 0.6m, and 0.5m from front/rear walls. Modern underground parking garages have large floor areas with numerous spaces. To ensure free vehicle movement, driveways are planned extensively. As horizontal passages exclusive to parking spaces, driveways account for the main floor area allocation, often occupying 50% or more of the total parking space area. Parking space arrangements can be categorized into three types: parallel, angled (30°, 45°, 60°), and perpendicular. Large vehicle spaces should not use angled or perpendicular styles. Details: Parallel spaces: Standard length 6m, width 2.5m. Angled spaces: Diagonal length 6m, width 2.8m, with 2.5m vertical distance between two angled lines. Perpendicular spaces: Length ≥ 5m (typically 6m), width 2.5m. The optimal standard size is 2.5×5.3m. The "Road Traffic Safety Law" stipulates that on-street parking spaces shall not be established on roads with less than 6m width for motor vehicles, nor on crosswalks or expressway main roads. Municipal authorities may designate parking spaces on urban roads where pedestrian/vehicle traffic isn't hindered. On-street spaces shouldn't interfere with bicycle lanes or occupy non-motorized traffic areas. Prohibited locations include intersections, building entrances, and near bus stops. Regulations specify vehicle types, parking durations through signage, and avoidance of impacts on moving traffic. Additional rules prohibit installing ground locks to prevent private occupation, allow barrier installations on no-parking roadsides, and mandate prompt removal of markings when spaces are discontinued. Off-street public parking lots shouldn't have on-street spaces within 200m-300m. Quantitative regulations for on-street parking space setup: The "Specifications" provides quantitative road width requirements. For two-way roads: spaces may be set on both sides if width > 12m; single side if 8-12m; prohibited if < 8m. For one-way roads: both sides if > 9m; single side if 6-9m; prohibited if < 6m. For disabled parking: at least 2% of total spaces should be accessible, with minimum 1 space when total exceeds 20. Parking space marking colors: White: Paid parking; Blue: Free parking; Yellow: Reserved parking; Time-limited spaces: Dashed borders (10cm line width) with permitted hours marked inside (60cm numeral height). Disabled parking spaces: Special markings with yellow grids (120cm width) on both sides indicating no-parking boarding areas. Other vehicles must not occupy these spaces. Surface markings show exclusivity with 20cm outer lines and 45° angled internal lines matching space length. Prohibited locations for on-street parking: Fire lanes, no-parking zones, construction areas; Emergency evacuation routes; Sidewalks (if allowed, must not block tactile paving); Near building entrances; Intersections, railway crossings, sharp curves, narrow roads ( < 4m), bridges, steep slopes, tunnels, and within 50m of these; Within 30m of bus stops, emergency stations, gas stations, fire hydrants or stations (except for service use); Within 20m of intersection channelization; Utility access points and within 15m; Within 200m of off-street parking lot entrances; Near roadside
