Accessible Pedestrian Signal (APS)

2019

•Sample APS Intersection Layout

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• Intersection Push Button Table

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Signal Control Points• PB8-2 and PB6-1

APS Signals Incorporated 2013

• Additional plan information will provide construction more guidance.

Intersection Push Button Table

2’6.5’

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4’ long rampdesignedLanding

APS Push Button Placement

Push button was placed on the grade break/edge of

landing

6’ long rampconstructed

4’ New (X,Y)

6’

(X,Y)

(X,Y) Push button was placed in the middle of the

ramp/landing

• Additional plan information will minimize rework.• Verify Push Button/Pedestal staking matches plan

layout.

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ADA Preferred APS Design

• Push Button Offset from Grade Break¾ Minimum 0.75’¾ Preferred 2.0’

• Maintain a 6.0’ MAR0.75’

6.0’

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• Discontinued Push Button Station

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• Discontinued Push Button Station

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APS Push Button Station and Location

MUTCD

MnDOT

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New Breakaway Pedestal Base Push Button Station

APS Push Button Station

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Breakaway Base Push Button Station

APS Push Button Station

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APS Push Button Station Foundation

APS Push Button Station Details

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APS Push Button Station Foundation

APS Push Button Station Details

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APS Push Button Station Foundation

APS Push Button Station Details

Picture on the left Anchor Rods came out on impact making reinstallation difficult.Correct installation on the Pedestal Base on the right shows breakaway base working as designed.

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1” Rigid PVC Conduit with End Bell (2” +/- ½” Projection)

Anchor Rod Placement and Conduit

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APS Push Button Details

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Flare landing to provide 9” minimum for push button station foundation

APS Push Button Details

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Pedestrian Signs Installation • Sign must be made with retro reflective sheeting.• Verify Braille message plate is correct for button

location.

Push buttons are improperly oriented

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• Buttons at outside edge of crosswalks

• Typical APS Push Button Location

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• Typical APS Push Button Location

Push Button is oriented incorrectly

• Prosecution of Work (ADA) Push Button shall be located at the outside crosswalk edge

22Original Design

• Typical APS Push Button Location

• Prosecution of Work (ADA) Push Button shall be located at the outside crosswalk edge

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• Typical APS Push Button Location

• Prosecution of Work (ADA) Push Button shall be located at the outside crosswalk edge

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1.5’ – 10’

• APS Push Button Details

5’ max.

BAC

K O

F C

UR

B

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6’ Min2’ Min

• APS Push Button Details

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MnDOT APS Pole Mounting Adaptor

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MnDOT APS Pole Mounting Adaptor

Special Provisions Prosecution of Work ADA “H”:

The push buttons shall be mounted at a height of 42 inches

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Push Button Orientation

Special Provisions Prosecution of Work ADA “H”:

Pedestrian push buttons shall be oriented with the button facing towards the intersection and the button face placed parallel to the outside edge of the crosswalk.

Incorrect

Correct

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42”

MnDOT APS Pole Mounting Adaptor

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• Pedestal Mount Detail

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“Saddle Adaptors” on Pedestals

2 ½”

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7/15/2015 Pedestal Foundation Detail

Pedestal Foundation Plate No. 8112I

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Special Provisions Prosecution of Work (ADA) “H” All Newly installed pedestal foundations when used as a push button station shall be constructed in accordance with applicable MnDOT Standard Plate 8112I. Concrete for new foundation shall be placed either with or after the landing concrete is placed….

MnDOT Pedestal Foundation

Top of the foundation surface shall be ¼”

max. higher than the top of landing surface.

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• 10” Horizontal Offset Exceeded

10” Max

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MnDOT Pedestal Foundation

Special Provisions Prosecution of Work (ADA) “H”

If a push button is placed on a new or previously existing pedestal pole, the push button shall be installed using 3 APS push button spacers (Saddle Adaptors) and the push button shall meet the vertical, horizontal, and crosswalk skew requirements.

• Push Button Horizontal Offset

Pedestal foundations not flush with landings will leave you with approximately 10 ½” side reach or 8” with use of APS push button spacers.

Every effort should be made to minimize side reach distance

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Light Foundation in sidewalk

• This light foundation was placed in the PAR due to utility conflicts

4’ minimum PAR(not met)

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• Know the Proposed Ramp Design

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• Know the Proposed Ramp Design

0”

0”

Push button is in the middle of the landing because

the ramp isn’t directional

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Verify changes in design

• If you need to change the curb ramp design verify your push button layout will work .

0” 0”

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Push Button Location

• Do Push button locations pass the eye test from both directions?

Button in middle of sidewalk

• This button was placed in the middle of the walk due to utility conflicts. And then removed and replaced to maintain a 6’ MAR.

6’

4’

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Rectangular Rapid Flashing Beacon

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` Push Button needs to meet all APS requirements including locator tone and audible message◦ Audible message should say:

“Yellow lights are flashing.” Message should be spoken twice

◦ For RRFB’s, push buttons shall not use vibrotactile indications or percussive indications

◦ All push buttons on MnDOTROW need to be made accessible (not exclusive to RRFB’s)

` FHWA issued interim approval of RRFB effective 3/20/2018

(RRFB)

ADA Training

Questions?

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