• When more than one building or facility is located on a site, accessible routes of travel shall be provided between buildings and accessible site facilities.
  
  
• The accessible route of travel shall be the most practical direct route between accessible building entrances, accessible site facilities and the accessible entrance to the site.

[Signs]
[Curb ramps]
[Detectable warnings]
[Diagonal curb ramps]

[General]
[Signs]
[Curb ramps]
[Detectable warnings]
[Diagonal curb ramps]

• At every primary public entrance and at every major junction along or leading to an accessible route of travel, there shall be a sign displaying the International Symbol of Accessibility.
• Signs shall indicate the direction to accessible building entrances and facilities.

[General]
[Signs]
[Curb ramps]
[Detectable warnings]
[Diagonal curb ramps]

1117A.4.1 General.

• Curb ramps shall be constructed at each corner of street intersections and where a pedestrian way crosses a curb.
• The preferred and recommended location for curb ramps is in the center of the crosswalk of each street corner.
• Where it is necessary to locate a curb ramp in the center of the curb return and the street surfaces are marked to identify pedestrian crosswalks, the lower end of the curb ramp shall terminate within such crosswalk areas. Curb ramps do not require handrails.

1117A.4.3 [For HCD 1/AC & DSA/AC] Slope of curb ramps.

• The slope of curb ramps shall not exceed 1 unit vertical to 12 units horizontal (8.33% slope).
• Transitions from ramps to walks, gutters or streets shall be flush and free of abrupt changes, except that curb ramps shall comply with Section 1117A.4.5.
• The slope of the fanned or flared sides of curb ramps shall not exceed 1 unit vertical to 8 units horizontal (12.5% slope).
• If a curb ramp is located where pedestrians must walk across the ramp, then it shall have flared sides; the maximum slope of the flare shall be 1 unit vertical in 10 units horizontal (10% slope).
• Curb ramps with returned curbs may be used where pedestrians would not normally walk across the ramp.

[General]
[Signs]
[Curb ramps]
[Detectable warnings]
[Diagonal curb ramps]

• A curb ramp shall have a detectable warning that extends the full width and depth of the curb ramp when the ramp slope is less than 1 unit vertical in 15 units horizontal (6.7% slope).
• Detectable warnings shall consist of raised truncated domes with a diameter of nominal 0.9 inch (22.86 mm), a height of nominal 0.2 inch (5.08 mm) and a center-to-center spacing of nominal 2.35 inches (59.7 mm) and shall contrast visually with adjoining surfaces, either light-on-dark or dark-on-light.
• Warning surfaces shall be of the color yellow conforming to Federal Color No. 33538, as shown in Table V of Standard No. 595A.
• Where the color value contrast between the yellow warning and the main walking surface is less than 70 percent, a 1-inch-wide (25 mm) black strip shall separate the yellow warning from the main walking surface. Contrast shall be determined by:

1117A.4.8 [For HCD 1/AC & DSA/AC] Obstructions.

• Curb ramps shall be located or protected to prevent their obstruction by parked cars.
• Built-up curb ramps shall be located so that they do not project into vehicular traffic lanes.

[General]
[Signs]
[Curb ramps]
[Detectable warnings]
[Diagonal curb ramps]

[General]
[Signs]
[Curb ramps]
[Detectable warnings]