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Commercial Handicap (not complete) guidelines
Parking and Passenger Loading Zones.
Parking spaces required to be accessible.
Passenger loading zones required to be accessible.
Accessible parking spaces serving a particular building shall be located on the shortest accessible route of travel from adjacent parking to an accessible entrance. In parking facilities that do not serve a particular building, accessible parking shall be located on the shortest accessible route of travel to an accessible pedestrian entrance of the parking facility. In buildings with multiple accessible entrances with adjacent parking, accessible parking spaces shall be dispersed and located closest to the accessible entrances.
Accessible parking spaces shall be at least 96 in (2440 mm) wide. Parking access aisles shall be part of an accessible route to the building or facility entrance and shall comply with 4.3. Two accessible parking spaces may share a common access aisle Parked vehicle overhangs shall not reduce the clear width of an accessible route.
Parking spaces and access aisles shall be level with surface slopes not exceeding 1:50 (2%) in all directions.
Accessible parking spaces shall be designated as reserved by a sign showing the symbol of accessibility. Spaces in compliance, with shall have an additional sign "Van-Accessible" mounted below the symbol of accessibility. Such signs shall be located so they cannot be obscured by a vehicle parked in the space.
Passenger loading zones shall provide an access aisle at least 60 in (1525 mm) wide and 20 ft (240 in)(6100 mm) long adjacent and parallel to the vehicle pull-up space. If there are curbs between the access aisle and the vehicle pull-up space, then a curb ramp compliance, shall be provided. Vehicle standing spaces and access aisles shall be level with surface slopes not exceeding 1:50 (2%) in all directions.
Curb ramps complying with 4.7 shall be provided wherever an accessible route crosses a curb.
Slopes of curb ramps shall comply. The slope shall be measured as shown in. Transitions from ramps to walks, gutters, or streets shall be flush and free of abrupt changes. Maximum slopes of adjoining gutters, road surface immediately adjacent to the curb ramp, or accessible route shall not exceed 1:20.
The minimum width of a curb ramp shall be 36 in (915 mm), exclusive of flared sides.
Surfaces of curb ramps shall comply.
If a curb ramp is located where pedestrians must walk across the ramp, or where it is not protected by handrails or guardrails, it shall have flared sides; the maximum slope of the flare shall be 1:10. Curb ramps with returned curbs may be used where pedestrians would not normally walk across the ramp.
Built-up curb ramps shall be located so that they do not project into vehicular traffic lanes.
A curb ramp shall have a detectable warning in compliance. The detectable warning shall extend the full width and depth of the curb ramp.
Curb ramps shall be located or protected to prevent their obstruction by parked vehicles.
Curb ramps at marked crossings shall be wholly contained within the markings, excluding any flared sides.
Any part of an accessible route with a slope greater than 1:20 shall be considered a ramp and shall comply.
The least possible slope shall be used for any ramp. The maximum slope of a ramp in new construction shall be 1:12. The maximum rise for any run shall be 30 in (760 mm). Curb ramps and ramps to be constructed on existing sites or in existing buildings or facilities may have slopes and rises as allowed.
The minimum clear width of a ramp shall be 36 in (915 mm).
Ramps shall have level landings at bottom and top of each ramp and each ramp run. Landings shall have the following features:
(1) The landing shall be at least as wide as the ramp run leading to it.
(2) The landing length shall be a minimum of 60 in (1525 mm) clear.
(3) If ramps change direction at landings, the minimum landing size shall be 60 in by 60 in (1525 mm by 1525 mm).
(4) If a doorway is located at a landing, then the area in front of the doorway shall comply.
If a ramp run has a rise greater than 6 in (150 mm) or a horizontal projection greater than 72 in (1830 mm), then it shall have handrails on both sides. Handrails are not required on curb ramps or adjacent to seating in assembly areas.
Handrails shall comply
(1) Handrails shall be provided along both sides of ramp segments. The inside handrail on switchback or dogleg ramps shall always be continuous.
(2) If handrails are not continuous, they shall extend at least 12 in (305 mm) beyond the top and bottom of the ramp segment and shall be parallel with the floor or ground surface.
(3) The clear space between the handrail and the wall shall be 1 - 1/2 in (38 mm).
(4) Gripping surfaces shall be continuous.
(5) Top of handrail gripping surfaces shall be mounted between 34 in and 38 in (865 mm and 965 mm) above ramp surfaces.
(6) Ends of handrails shall be either rounded or returned smoothly to floor, wall, or post.
(7) Handrails shall not rotate within their fittings.
The cross slope of ramp surfaces shall be no greater than 1:50. Ramp surfaces shall comply.
Ramps and landings with drop-offs shall have curbs, walls, railings, or projecting surfaces that prevent people from slipping off the ramp. Curbs shall be a minimum of 2 in (50 mm) high. .
Outdoor ramps and their approaches shall be designed so that water will not accumulate on walking surfaces.