Accessible Pedestrian Signals APS By Zane Sapp Campbell Company - - PowerPoint PPT Presentation

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Accessible Pedestrian Signals APS By Zane Sapp Campbell Company - - PowerPoint PPT Presentation

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Accessible Pedestrian Signals APS By Zane Sapp Campbell Company 4/29/2015 Pedsafety.com 1 Outline What is APS? What does ADA require? Where is APS made? Understanding APS (MUTCD) When to Install APS Designing APS

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Accessible Pedestrian Signals APS

By Zane Sapp Campbell Company

4/29/2015 1 Pedsafety.com

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Outline

  • What is APS?
  • What does ADA require?
  • Where is APS made?
  • Understanding APS (MUTCD)
  • When to Install APS
  • Designing APS Installations
  • Instruction & Operation
  • Benefits

4/29/2015 2 Pedsafety.com

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What is APS?

  • Accessible Pedestrian Systems -are

enhancements to the traffic signal system to provide signal phase information in non-visual formats such as: audio, tactile, and vibrotactile.

4/29/2015 Pedsafety.com 3

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What ADA Requires?

Federal Register Vol. 59, No. 117 14.2.5 Crossing Controls Requirements for control button size, operating force, mounting height, and location.

  • Button diameter of 2 inches
  • Maximum Force required for operation 5 lbf (22.2 N)
  • Maximum height of 42 inches above the sidewalk.
  • 30 inch by 48 inch level area within 10 inches

horizontally of the button.

4/29/2015 Pedsafety.com 4

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Made in USA

  • Assembly of APS -Boise ID
  • Circuit boards –Boise ID
  • Powder Coating -Boise ID
  • Signs Screen Printed -Boise ID
  • Engineering -Boise ID
  • American Aluminum
  • HAAS machines built in USA

4/29/2015 Pedsafety.com 5

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MUTCD 2009: Pedestrian Detectors and APS

Section 4E.08: Pedestrian Detectors Section 4E.09: Accessible Pedestrian Signals and Detectors – General Section 4E.10: Accessible Pedestrian Signals and Detectors – Location Section 4E.11: Accessible Pedestrian Signals and Detectors – Walk Indications Section 4E.12: Accessible Pedestrian Signals and Detectors – Tactile Arrows and Locator Tones Section 4E.13: Accessible Pedestrian Signals and Detectors – Extended Pushbutton Press Features

4/29/2015 Pedsafety.com 6

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Understanding APS

  • Locator tone - 0.15 seconds or less (4E.12)
  • Acknowledgement message

– “Wait” (4E.11)

  • Location Message

– “Wait to Cross Main @ 1st” (4E.13)

  • Walk message

– Vibrotactile “Percussive / Walk sign is on to cross 1st” (4E.11)

  • Beaconing (4E.11)

4/29/2015 Pedsafety.com 7

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When to Install APS

  • PROWAG - Proposed Right-of-Way Accessibility

Guidelines (DRAFT)

– All new intersections will require APS (R209.1) – For existing signals APS will be added if the signal controller and software are altered, or signal head is replaced. (R209.2)

– http://www.access-board.gov/attachments/article/743/nprm.pdf

  • Or if a vision impaired pedestrian requests APS
  • MUTCD Sets guideline of how to install

4/29/2015 Pedsafety.com 8

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Designing APS Installations

MUTCD 4E.11-13 :

  • Verbal messaging when less than 10 feet of

separation between stations (4E.11)

  • Percussive tones shall be used when there is

greater than 10 feet of separation (4E.11)

  • Tactile Arrow pointed in the direction of the

crosswalk (4E.12)

4/29/2015 Pedsafety.com 9

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Less than Ten Feet Separation

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Verbal message shall be used (4E.10)

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Greater than Ten Feet Separation

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Percussive tone shall be used (4E.11)

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When (some) stations are less than 10 ft

  • In the event that some of the audible

pedestrian stations are less than 10’ apart

  • The stations that are less than 10’ must have

verbal messages.

  • Having mixed messages in an intersection can

cause some confusion.

4/29/2015 Pedsafety.com 12

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Operational Check

  • Momentary press

– Acknowledgement (Default Mode)

  • Extended Press

– Location message/Beaconing – EP APS Mode

  • LED (latching)
  • Walk Message

– Verbal or Percussive

4/29/2015 Pedsafety.com 13

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When to Implement Beaconing

  • Greater than 70’ crossing
  • Skewed or irregular crossing
  • Visually impaired person requests
  • Engineering study shall be conducted

4/29/2015 Pedsafety.com 14

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Features

  • Night mode

– Locator tone set to be heard 6-12 feet from station

  • r building line (whatever is less)

– At night this can be lower for residential areas – Cannot disable locator by time of day

  • Ambient Gain Compensation-AGC

– The volume will rise and fall with the ambient

  • noise. (4E.11)

4/29/2015 Pedsafety.com 15

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Building line

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  • Locator tone must not be heard at the building (4E.12)
  • Candidate for Constant Locator tone (no AGC)
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Echo and Absorption of Sound

  • Buildings (downtown)
  • Alleys
  • Garages

Soft surfaces will absorb sound

  • Trees, Bushes and Grass

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Echo Hard Surface

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Sound vs Distance Formula

  • The sound level will decrease by 6 dB every

time the source to the listener's distance is doubled.

  • Half the SPL

(Sound pressure level)

4/29/2015 Pedsafety.com 18

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Sound Level with Distance

Table of Locator Tone Data Ave 2 ft 4 ft 6 ft 8 ft 12 ft Locator Volume dB dB dB dB dB dB

  • 10

46.9 43.3 37.3 34.3 31.3 28.3

  • 5

49.0 45.4 39.4 36.4 33.4 30.4 53.0 49.4 43.4 40.4 37.4 34.4 5 55.1 51.5 45.5 42.5 39.5 36.5 10 57.3 53.7 47.7 44.7 41.7 38.7 20 60.2 56.6 50.6 47.6 44.6 41.6 30 62.5 58.9 52.9 49.9 46.9 43.9 40 64.4 60.8 54.8 51.8 48.8 45.8 50 66.3 62.7 56.7 53.7 50.7 47.7 70 69.8 66.2 60.2 57.2 54.2 51.2 100 72.5 68.9 62.9 59.9 56.9 53.9 150 74.3 70.7 64.7 61.7 58.7 55.7 200 78.2 74.6 68.6 65.6 62.6 59.6 250 79.6 76 70 67 64 61 300 81.6 78 72 69 66 63

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Quiet dB reading 42 dB

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Locator set to volume 10 AAPS

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4 feet from button

47dB

8 feet from button Ambient Noise 42 dB

41.7 dB Locator equal to ambient

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4/29/2015 Pedsafety.com 21

Distance to Hear Locator

6 feet from button (easy to hear locator) 10 feet from button (Barely able to hear locator in traffic) 12 feet from button (Should be only able to hear when no traffic)

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Benefits of APS

  • Visually impaired pedestrians navigate by

audible information and by touch. The raised tactile arrow gives them a direction and audible walk message /vibrotactile gives the information that the Walk sign is on.

  • Visually impaired peds have a hard time

navigating intersections with electric vehicles.

  • Texting Pedestrians

4/29/2015 Pedsafety.com 22

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APS Products

  • AAPS (Advisor Advanced Pedestrian System)

– 2 Wires only – Controller Ethernet based

  • AGPS ( Advisor Guide Pedestrian Station)

– 4 wires from Ped head – 2 wires to cabinet (not necessary) – Independent (no controller cost)

4/29/2015 Pedsafety.com 23

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4/29/2015 Pedsafety.com 24

AAPS vs AGPS

SPI 4 Wire connection to Pushbutton 2 Wire connection to Cabinet 2 Wire connection to Cabinet 2 Wire connection from termination board to APC APC in Cabinet Termination board

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SPI 4-Wire connection to Pushbutton 2 Wire connection to Cabinet (places calls)

Orange Don’t Walk White Neutral 120VAC Connections Blue Walk Mounting

Red - Terminal 1: S1 DW Red Green - Terminal 2: S2 W Grn White - Terminal 3: Neutral Wht Black – Terminal 4: 12VDC Blk

Station (Back) Top AGPS Wiring Connections

12/24 V AC/DC connection to traffic controller (optional)

Bottom

  • Black
  • White
  • Green
  • Red

Scan for Install Instructions Please visit Pedsafety.com for Install Manual

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SPI Mounting

4/29/2015 Pedsafety.com 26

  • Mount with ¼-20

Screw

  • Flat on the back of

the ped head

  • Wires should run

down from SPI to avoid standing water

  • n unit
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USB Connection

  • AGPS utilizes a USB Connection to change

volumes and messages

  • Utility is available at www.pedsafety.com
  • U-tube help videos are available
  • B Type USB cable needed

4/29/2015 Pedsafety.com 28

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Wireless Closure Module

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  • Adds to AGPS

power supply

  • Makes contact

closures without 2 wires back to traffic cabinet.

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Typical Wireless Install

  • 4 Nodes
  • 1 Master at Cabinet
  • Each Node can handle 2 buttons

4/29/2015 Pedsafety.com 30

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4/29/2015 Pedsafety.com 31

Cabinet 120VAC

AC-

12R-A 11R-A 10R-A 9R-A 12G-A 9G-A 10G-A 11G-A

PC8-A PC4-A PC6-A PC2-A

AC-

TO TO

Termination Board

NOTE: Each terminal on the Termination Board shown above is fused. Push buttons do not need to be hook up in any particular order.

APB APC

Default IP: 192.168.1.101 Installation Guide *** Termination Board comes populated for standard 8 buttons. If more buttons are needed please specify

Please visit our website for installation instructions http://www.pedsafety.com

AAPS Installation Quick Guide

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Base Station/ 400 style

  • Front facing Speaker
  • Microphone integral to

Station

  • Field selectable arrow

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5 x 9” 400 style

  • Available in 5x7 ¾”, 5x9”,9x12”,9x15”

400 Style

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Install in a Traffic Cabinet

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APC Termination Board Pedestrian Inputs (Calls) 120VAC Walk and Don’t Walk Signals

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Ethernet Connection

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IP Address: 192.168.1.101 User: admin Password: password

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Termination Board

4/29/2015 Pedsafety.com 35

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Cables

120VAC Power Cable Db 9 (Interface to ped Calls) Db 25 (Interface to load switches)

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Extension Bracket

4/29/2015 Pedsafety.com 37

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RR Station Product Development

4/29/2015 Pedsafety.com 38

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Final Design

4/29/2015 Pedsafety.com 39

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AGPS at Train Stops

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  • Locator Tone
  • Informational

message

  • Braille
  • Announce

Train Arrival

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Thank You

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