Pedestrian_Alert_System.pdf

U.S. MINT, SAN FRANCISCO VEHICLE SLIDING GATE AND GATE OPERATOR UPGRADE

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SECTION 00000

PEDESTRIAN ALERT SYSTEM FOR PARKING GARAGES AND BLIND CORNERS

PART 1 – GENERAL

A. The intent of this document is to specify the minimum criteria for the design, supply, installation, and commissioning of a Pedestrian Alert

Safety System used to notify pedestrians and street traffic of a vehicle exiting the parking facility.

1.01 SUMMARY:

A. A CAR COMING Pedestrian Alert Safety System is designed to provide a clear visual and audible voice alert to pedestrian and street traffic when a vehicle is exiting the parking facility. The alert system shall be self-contained with all controls of the system contained within the enclosure of the sign.

1.02 SYSTEM DESCRIPTION:

A. The CAR COMING Pedestrian Alert Safety System activates when a vehicle is detected exiting the parking facility. When activated the alert system provides a flashing amber alert, brightly backlit text indicating “CAR COMING”, and a voice alert notifying nearby pedestrians.

PART 2 - PRODUCTS

2.01 MANUFACTURED UNITS:

A. Descriptions:

1. CAR COMING, Pedestrian Alert Safety System with integrated

Controller Board.

2.02 TECHNICAL OVERVIEW:

A. The CAR COMING Pedestrian Alert Safety System activates when a vehicle is detected exiting the parking facility. When activated the alert system provides a flashing amber alert, brightly backlit text indicating a “CAR COMING”, and a voice alert notifying nearby pedestrians.

B. System Activation Triggers:

The system can be activated by any detection device that has a normally open output contact that closes upon detection of the vehicle. Multiple devices, such as parking barriers or vehicle loop detectors, connected

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in parallel can be linked together to provide activation of the sign if any device detects a vehicle movement.

C. Typical System Activation Triggers:

The following is a list of typical system activation triggers.

1. Parking barrier “Gate Open” output

2. Vehicle motion detector

3. Beam detector activation output

D. Visual Alerts:

The sign has two visual alerts to draw the attention of pedestrians and street traffic warning of a vehicle exiting the facility.

1. Flashing Amber LEDS – a conspicuous visual alet that provides a warning to drivers and pedestrians.

2. Backlit Text Message – the LED backlit text provides a clear message warning of a CAR COMING out of the facility. The backlit text message can optionally flash synchronized with the Flashing

Amber LED by moving the wires from Output 1 to Output 2.

E. Audible Alert:

The audible alert is designed to provide either a clear voice message or sound file alerting nearby pedestrians who are distracted from the visual alerts, this is typical of pedestrians walking and using a mobile device. The audible alet has the ability to play any MP3 file.

The file is stored on an onboard removable micro SD card that provides technicians and end users an easy path to modifying the file. The audible alert volume can be controlled by an onboard volume control dial. The system has an onboard sound amplifier and an integrated 30 watt speaker is located at the bottom of the sign. The integrated controller provides an external speaker output to add additional speakers to the system if the ambient noise around the system is louder than 65db.

F. Timer Controller:

The controller integrated into the system contains two timers for customization.

1. Activation Timer – this timer is used to control the duration of activation of the system. The timer is controlled by a dial that allows a 5~60 second activation of the sign.

2. Delay Activation Timer – this timer is used to provide a delay between trigger input and activation of the system. This timer is

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typically used when a vehicle has a longer than normal distance to travel from the trigger to the exit.

2.03 FEATURES:

The following features are required in the Pedestrian Alert Safety System

A. Visual alert can be viewed 180̊, from both sides and from the front of the sign.

B. A flashing amber alert providing a visual warning.

C. A brightly backlit message indicating that a “CAR COMING” or “VEHICLE

EXITING” .

1. All lighting is LED weatherproof modules, provide 50,000+ hours of service

2. A clear voice alert message indicating that “Attention. Vehicle

Exiting.”

3. An integrated adjustable play activation timer from 5-60 seconds

4. An integrated delay activation timer from 0-30 seconds

5. An integrated speaker providing up to 65db

6. An integrated volume control

7. Sound files can easily be changed by technician or end user

8. Sound files are MP3 format stored on a removeable micro SD card

9. All integrated controls are solid state and without any mechanical points of failure.

10. Activation input can accept a dry contact, 12VDC pulse, or 24VDC pulse.

2.04 SPECIFICATIONS:

Enclosure

Shape: Prism

Dimensions: 40”H x 10” sides

Enclosure: 14 Gauge Steel

Weight: 37 lbs

Viewing range: >180

Finish Powder Coating: Hammered Copper Textured

Electrical Power 115VAC~120VAC or 12VDC 2A

Trigger Inputs Dry Contact, 12VDC, 24VDC

Operating Temperature -20̊F tp 110̊F (-29̊C to 43̊C)

Operating Humidity 0% to 90%

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Controller Power 12VDC

Controler Outputs 1 Steady, 1 Flashing (1 second on/1 second off)

Volume Control 0 to 65db

Timer Controls Activation Timer 5~60seconds, Delay Activation

Timer 0~30seconds

Sound Filer Format MP3

Sound File Storage Micro SD card

Mounting Wall mount bottom of unit 76” from the ground

2.05 INSTALLATION:

The bottom of the system is surface mounted on walls at approximately 76” from the ground. The sign should be located no more than 12’ from the exit of the facility. For exits over 30’ wide it is recommended that two system signs be connected in tandem on either side of the exit.

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