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4.7.5 Sides of Curb Rampa. No curb ramp is located where pedestrians must walk across the ramp. or where it is not protected by handrails or guard. rails, then it shall have nared sides, the maximum slope of the Mare shall be 1:10 (see Fig 12a)). Curb ramps with returned curbs may be used where pedes trians would not normally walk across the ramp (see Fig 12b)). 4.7.6 Built-up Curd Ranpa Built-up curb ramps shall be located so that they do not project into vehicular traffic lanes (see Fig 13).
4.8.1° General. Any part of an accessible route with a stope greater than 1:20 shall be considered a ramp and shall comply with 4.8.
4.8.2* Slope and Rise. The least possible stope í 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) (see Fig. 16). Curb ramps and ramps to be constructed on endsting sites or in existing buildings or facilities may have slopes and rises as shown in Table 2 if space lirmitations prohibit the use of a 1:12 slope or less (see 4.1.6).
47.7 Warring Texturas (Removed and reserved. 4.7.8 Obstructions. Curt ramps shall be located ar protected to prevent their obstruction by parked vehida 4.7.9 Location at Marked Crossings Curb ramps at marked crossings shall be wholly contained within the mardings acuding my dared sides (see Fig. 15). 4.7.10 Diagonal Curb Rampa i diagonal (or cor ner type) curb ramps have returned curbs or other wet detined edges, such edges shall be parallel to the direction d pedestrian now. The bottom of diagonal curb ramps shall have 48 in (1220 mm) minimum cier space as shown in Fig 15(c) and (d). I diagonal curb ramps are provided at marked crossings, the 48 in (1220 mm) clear space shall be within the marlongs (see Fig 1540) and (d)). I diagonal curb ramps have Nared sides, they shall also have at least a 24 in (610 mm) long segment of straight curb located on auch side of the curb ramp and within the marked crossing (see Fig 1540) 4.7.11 balande. Any raised islands in crossings shall be cut through level with the street or have curb ramps a both sides and a bevel ara a least 48 in (1220 mm) long in the part of the island intersected by the crossings (see Fig 151a) and (b)).
4.0.3 Clear Wath. The minimum clear width of a ramp shall be 36 in (915 mm). 4.8.4 Landings Ramps shall have level landings at the bottom od top of each 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) clex.
(3) i ramps change direction a landings the minimum landing size shall be 60 in by 60 in (1525 mm by 1525 mm).
(4) a doorway is located at a landing, then the area in front of the doonvey shall comply with 4.13.6. 4.8.5° Handraila. Na rampsun has a rise greater than 6 in (250 mm) or a horizontal projection greater than 72 in (1830 mm), then it shall have handraits on both sides Handrails are not required on curb ramps Handraits shall comply with 4.26 and shall have the following features:
(1) Handrails shall be provided along both sides of ramp segments. The inside handrail on switchback or dogleg ramps shall always be continuous
(2) N handrails are not continuous, they shall extend alen 12 in (305 min) beyond the top and bottom of the ramp segment and shall be parallel with the Moor or ground surface
(3) The clau space between the handrail and the well shall be 1-1/2 in (38 mm).
(4) Gripping surfaces shall be continuous
(5) Top of handrai groping surfaces shall be mounted between 30 in and 34 in (760 mm and 865 mm above ramp surfaces.
(6) Ends of handaits shall be either rounded or retuned smoothly to poor, wall or post
(7) Handtails shall not rotate within the ritings