specifications to the requirements for location (M305.2.1) and length (M305.2.2) based on the type of transfer support required; has added new technical requirements for height (M305.2.3), cross...
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1. Transfer Supports
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1. Sloped Surfaces
Cross slope is the slope or grade of a surface perpendicular to the running slope. The most cross slope allowed on an accessible route is 1:50 (2% or 1.15 degrees)....
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11B-406.5.10 Diagonal curb ramps
Diagonal curb ramps with flared sides shall have a segment of curb 24 inches (610 mm) long minimum located on each side of the curb ramp and within the marked crossing....
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Issue 2: Location relative to the crosswalk
Issue 2: Location relative to the crosswalk An APS that is mounted outside the crosswalk area may provide misleading information about the crossing location....
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11B-406.5.10 Diagonal curb ramps
Diagonal curb ramps with flared sides shall have a segment of curb 24 inches (610 mm) long minimum located on each side of the curb ramp and within the marked crossing....
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Boat Slips: ADA Standard Section 1003.2.1
The cross slope specified in 403.3 and 405.3 for gangways, transition plates, and floating piers that are part of accessible routes shall be measured in the static position. 8....
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11B-1003.2.1 Boat slips
The cross slope specified in Sections 11B-403.3 and 11B-405.3 for gangways, transition plates, and floating piers that are part of accessible routes shall be measured in the static position...
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Q12: Full-depth Pavement Patching
If the pavement patching impacts the curb at a pedestrian street crossing where no curb ramp exists, the work affecting the curb falls within the definition of “alteration,” and a curb ramp...
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Issue 3: Which signal? Speech WALK messages necessary
Pedestrians standing at one crosswalk could mistake the message of the other crosswalk for their indication to begin crossing....
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M305.2.4 Cross Section (Section-by-Section Analysis)
with non-circular cross sections to have a cross section dimension of 2 inches maximum, and a perimeter dimension of 4 inches minimum and 4.8 inches maximum....
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Issue 4: Wrong pole! …Wrong message!
Since the APS is closer to the departure curb and curb ramp for crossing straight ahead (in line with the photographer’s direction of travel), a pedestrian hearing the sound from that APS...
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11B-705.1.1.3 Color and contrast
11B-705.1.1.3 Color and contrast. Detectable warning surfaces shall comply with Section 11B-705.1.1.3.1. The material used to comply with this section shall be an integral part of...
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Tactile arrow
Tactile arrow The tactile arrow on the device must be aligned with the direction of travel on the crosswalk and point toward the street crossing that the pushbutton controls and signals...
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11B-406.5.1 Location
Curb ramps at marked crossings shall be wholly contained within the markings, excluding any flared sides. Exception: Diagonal curb ramps shall comply with Section 11B-406.5.9....
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11B-406.5.1 Location
Curb ramps at marked crossings shall be wholly contained within the markings, excluding any flared sides. Exception: Diagonal curb ramps shall comply with Section 11B-406.5.9....
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11B-406.5.1 Location
Curb ramps at marked crossings shall be wholly contained within the markings, excluding any flared sides. Exception: Diagonal curb ramps shall comply with Section 11B-406.5.9....
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Accessible Slopes
For the cross slope of an accessible route the maximum slope allowed is 1:48....
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Issue 13: Stub poles
which the APS volume had to be set to be quite loud in order to be heard at the crosswalk and where using the tactile arrow and vibrotactile WALK indication could result in a hazardous crossing...
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Significant alternatives which minimize any significant economic impacts on small entities
Maximum cross slope of 2 percent required on pedestrian access routes, including within pedestrian street crossings with yield or stop control....
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11B-705.1.1.3 Color and Contrast
Detectable warning surfaces at transit boarding platform edges, bus stops, hazardous vehicular areas, reflecting pools, and track crossings shall comply with Section 11B-705.1.1.3.1....
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Step 2: Identify the Presence of Limiting Factors
Does the combined trail running slope (grade) and cross slope exceed 1:2.5 (40 percent) for a continuous distance of 20 feet (6 meters) or more?...
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Where to Measure Along the Route
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Methods for Placing a Slope Tool on the Surface
There are several methods that can be used for measuring slopes and cross slopes with a digital slope meter. Each method has advantages and disadvantages....
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Issue 1: APS volume
Directional guidance from audible pedestrian signals for street crossing. Ergonomics. 2004. Vol. 47, (12), 1318 – 1338. 10. Carroll & Bentzen. p. 14. 11....