Space is needed at the top and bottom of ramps so that people using wheelchairs can align with the running slope and maneuver from ramps, including when making turns (which is difficult...
Search Results "Boarding Ramp"
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  Obstructions [4.7.8]
  
 - #CrappyCurb
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  § 38.125(b)(8) Platform entrance ramp
  
(8) Platform entrance ramp....
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  A4.8.2 Slope and Rise
  
Ramp slopes between 1:16 and 1:20 are preferred. The ability to manage an incline is related to both its slope and its length....
 - ADA Solutions, Inc. Radius Tactile Detectable Warning Surface
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  4. Example: Installing Curb Ramps for Program Accessibility
  
Some intersections have curb ramps; most do not. The town is trying to figure out where to install curb ramps to provide access to the town hall....
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  § 38.159(c)(4) Ramp barriers
  
(4) Ramp barriers. Each side of the ramp shall have barriers at least 2 inches (50 mm) high to prevent mobility aid wheels from slipping off....
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  § 38.83(c)(4) Ramp barriers
  
(4) Ramp barriers. Each side of the ramp or bridge plate shall have barriers at least 2 inches high to prevent mobility aid wheels from slipping off....
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  Slope [4.7.2]
  
The running slope of curb ramps cannot exceed 1:12....
 - SafePath: Threshold Ramp Installation for MultiFamily Housing for Disability Access
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  11B-206.2.19 Pedestrian street crossings
  
Where walks or sidewalks are provided, a curb ramp, blended transition, or a combination of curb ramps and blended transitions complying with Section 11B-406 shall connect the walks or sidewalks...
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  § 38.125(c)(5) Slope
  
Ramps or bridge plates shall have the least slope practicable....
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  DSA Drawing 11B-406-5 Perpendicular Curb Ramp next to a Curb and Gutter (2016 CBC)
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  T402.11 Gaps
  
When ramps or bridgeplates are deployed for boarding and alighting, gaps between the ramp or bridgeplate surface and floor of non-rail vehicles shall not permit passage of a sphere more...
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  DSA Drawing 11B-406-11 Diagonal Curb Ramp next to a Curb and Gutter (2016 CBC)
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  4.7.10 Diagonal Curb Ramps
  
The bottom of diagonal curb ramps shall have 48 in (1220 mm) minimum clear space as shown in Fig. 15(c) and (d)....
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  T402.12 Stowage
  
Where portable ramps and bridgeplates are permitted, a compartment, securement system, or other storage method shall be provided within the non-rail vehicle to stow such ramps and bridgeplates...
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  B. Slopes
  
Slopes - Examine each of the interior routes described above: ...excluding accessible ramps, do the corridors have running slopes (i.e.: in the direction of travel) not more than 1:20...
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  §104.4(b)(1)(vi)
  
(vi) Deny a qualified handicapped person the opportunity to participate as a member of planning or advisory boards; or...
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  4.7.10 DIAGONAL CURB RAMPS
  
If diagonal (or corner type) curb ramps have returned curbs or other well-defined edges, such edges shall be parallel to the direction of pedestrian flow....
 - Simplified Building Concepts ADA Handrail
 - Alumi-Guard Handrail
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  Landings [§405.7]
  
Intermediate landings between runs must be at least 60” wide clear and 60” long clear where ramps change direction (any change from linear)....
 - SafePath: ADA Entry Level Landing Installation Training Video
 
              