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How
to Specify Lightguard Pedestrian Crosswalk
Fixture
GENERAL
PRODUCT SPECIFICATION
1.1
Lighted Crosswalk Warning system
The lighted crosswalk warning system consists of a power control
unit, a control unit/service equipment enclosure, inset light emitting
diode (LED) lighting fixtures with in-roadway base plates, activation
mechanisms and related equipment as necessary for a complete operational
system.
The installed system shall comply with National Electric Code (NEC)
Article 300, Chapter 7, Section 725-3 rated as "Low Voltage".
The System shall be installed to manufacturer's recommended specifications
and conform to federal, state or local regulations.
1.2
"MADE IN AMERICA"
SYSTEM MUST QUALIFY FOR "MADE IN THE U.S.A." PREFERENCE.
1.3
Enhanced Superior Flash Rate
The system shall have a tested proven effective "Enhanced Superior
Flash Rate".
1.4
Data Collection
The system must collect and store all operational, functional and
statistical information.
1.5
Data Retrieval
The system must be RS232 accessible via local and remote access
with data information retrieval capability.
1.6
Roadway Pavement Intrusion Limitation
The system must provide In-Roadway Warning Lights that DO NOT encroach
the roadway pavement beyond 2 inches in depth.
1.7
Solar Power
System shall be solar power capable.
1.8
Uninterruptible Power Supply With Battery Back-Up
The system shall include a battery back-up system to maintain uninterrupted
operation during power outages.
1.9
Manufacturer System Assurance
Upon request the manufacturer shall provide the purchasing agency
with a minimum of three test/ evaluation study reports conducted
by independent agencies. Test/ evaluation study reports shall demonstrate
the worthiness and effectiveness of manufacturer's system for assurance
by purchasing agency.
2.0
Manufacturer Proof of Insurance
Upon request, the manufacturer shall provide the purchasing agency
with "Proof of Product Liability" Insurance covering "In-Roadway
Warning Lights" for use at crosswalks.
2.1
Power Control Unit
The Power Control Unit (PCU) shall be based on a high-speed 8-bit
embedded micro controller and shall utilize a compiled machine control
language. PCU shall include system operation software with user
adjustable parameters accessed by Key Pad and LCD display.
PCU output voltage shall not exceed 15 volts.
2.2
Control Unit/Service Equipment Enclosure
An aluminum Type 111-AF service equipment enclosure shall be provided.
The enclosure shall meet or exceed NEMA 3R rating.
2.3
In-Roadway Lighting Fixtures
In-roadway lighting fixtures shall be light emitting diode (LED)
type.
The light source shall be amber AlInGaP, non-diffused LED lamps.
The luminance of the lights shall be a minimum of 2,250 cd/mū.
Lights shall be visible at a minimum of 400 feet in advance of the
crosswalk.
The lighting fixtures shall be a uni-directional light source.
The lights shall flash at an enhanced rate of multiple flashes per
second.
The flash rate shall meet or exceed standards established by the
Federal Highway Administration (Manual on Uniform Traffic Control
Devices).
The lighting fixtures shall have a standard black anodized finish.
The light fixture assembly shall have a debris-free, self-clearing
design.
2.3a
In-Sidewalk Activation Device
In-Sidewalk Activation Device shall be installed in conjunction
with UniBollard assembly (Section 2.6a) for automatic system activation.
Automatic infrared beam interruption detection device shall be supplied
at each side of crosswalk entrance zone.
Optical beam sensors shall automatically activate the system upon
interruption by a pedestrian entering the crosswalk between the
ISAD & Uni-Bollard.
Automatic Activation System shall not re-activate the system when
pedestrian exits crosswalk.
ISAD to contain 2 SM31EL Sensor Emitters.
The ISAD shall have a standard black anodized finish and be installed
in Option 2 Base Plate (Section 2.4).
The ISAD shall have a debris-free, self-clearing design.
| Detection
Method: |
Break
Beam, Modulated @ 880nm |
| Detection
Type: |
Infrared |
| Rating: |
250
ma /12.5 volts DC (not to exceed 15V) |
| Maximum
Distance: |
Not
to Exceed 20-feet ISAD & Uni-Bollard |
| Operating
Temperature: |
-20C
to +70 C |
| Humidity: |
90-percent
at 50C (non-condensing) |
2.4
In-Roadway Light Fixture Housing (Base Plate)
The light fixture housing shall be cast metal alloy with anti-slip
finish.
The light fixture housing materials shall withstand normal vehicle
tire impact without sustaining permanent deformation or cracking.
The light fixture housing shall be: (one of the following)
- Option
1. = 14.5 inches in diameter (Snow Plow resistant).
- Option
2. = 10 inches in diameter (Non-Snow Plow).
- Option
3. = 7.5 inches in diameter (Low-impact).
2.5
Pedestrian Crossing Symbol Signs
Pedestrian Crossing Symbol Sign shall include Amber LED lights.
Pedestrian Crossing Symbol Sign LED lights shall flash at an enhanced
rate of multiple flashes per second, synchronized with all other
system lights.
Pedestrian Crossing Symbol Sign shall include mounting bracket assembly.
Tamper resistant hardware will be supplied by installer.
Pedestrian Crossing Symbol Sign shall be Federal Designation in
size, color and description. See below.
| Size:
|
30
inches by 30 inches |
| Federal
Designation Type: |
WII-2
(standard) or S1-1 (school crossing) |
| Federal
Designation Color: |
Fluorescent
Yellow Green (FYG) |
| |
(optional
high intensity yellow) |
2.6
Automatic Activation Gates (Bollard System)
Automatic infrared beam interruption detection device shall be supplied
at each side of crosswalk entrance zone.
Optical beam sensors shall automatically activate the system upon
interruption by a pedestrian entering the crosswalk between the
bollard gates.
Automatic Activation System shall not re-activate the system when
pedestrian exits crosswalk.
Automatic Activation Bollard shall include low-level courtesy LED
lighting.
| Size:
|
Height:
42 inches, Diameter: 8.5 inches |
| Color: |
Powder
Coat White |
| Material: |
Extruded
Aluminum Body with Cast Top |
| Detection
Method: |
Break
Beam, Modulated @ 880nm |
| Detection
Type: |
Infrared |
| Rating: |
250
ma /12.5 volts DC (not to exceed 15V) |
| Maximum
Distance: |
Not
to Exceed 60-feet between bollards |
| Operating
Temperature: |
-20C
to +70 C |
| Humidity: |
90-percent
at 50C (non-condensing) |
2.6a
Automatic Activation Gate (Uni-Bollard System)
Uni-Bollard assembly shall be installed in conjunction with In-Sidewalk
Activation Device (Section 2.3a) for automatic system activation.
Automatic infrared beam interruption detection device shall be supplied
at each side of crosswalk entrance zone.
Optical beam sensors shall automatically activate the system upon
interruption by a pedestrian entering the crosswalk between the
Uni-Bollard & ISAD.
Automatic Activation System shall not re-activate the system when
pedestrian exits crosswalk.
Automatic Activation Bollard shall include low-level courtesy LED
lighting.
Uni-Bollard to contain 2 SM31RL Sensor Receivers.
| Size:
|
Height:
42 inches, Diameter: 8.5 inches |
| Color: |
Powder
Coat White |
| Material: |
Extruded
Aluminum Body with Cast Top |
| Detection
Method: |
Break
Beam, Modulated @ 880nm |
| Detection
Type: |
Infrared |
| Rating: |
250
ma /12.5 volts DC (not to exceed 15V) |
| Maximum
Distance: |
Not
to Exceed 60-feet between bollards |
| Operating
Temperature: |
-20C
to +70 C |
| Humidity: |
90-percent
at 50C (non-condensing) |
2.7
Pushbutton Activation
Push Button activation assembly shall include Amber LED lights.
| Assembly
Size: |
Height:
12 inches, Width: 5.25 inches |
| Assembly
Color: |
Green |
| Faceplate
Size: |
Height:
7.75 inches, Width: 5 inches |
| Faceplate
Color: |
Yellow
Background w/ Black Lettering |
| Material: |
Cast
Aluminum |
| Faceplate
Lights: |
Amber,
Light Emitting Diodes (LED) |
| Push
Button: |
ADA
Compliant, 2 inch SS Mushroom w/shield & microswitch |
| Mounting: |
Pole
mounted per local height requirements |
2.8
In-Roadway Conductors
In-roadway conductors for lighting fixtures shall be stranded #14
AWG, Type RHH or RHW-2 (Type EPR/Hypalon 600 volt power cables,
90C dry and 75C wet).
In-roadway conductors shall be Red and Black in color.
In-roadway conductors shall be installed according to National Electric
Code (NEC) Article 300, Chapter 7, Section 725-3 standards.
In-roadway conductors may be direct buried (No minimum depth required
per NEC).
In-roadway conductors for activation devices, Pedestrian Crossing
Symbol Signs, and additional components shall be stranded #18 AWG/
7 Conductor (Type TC, UL 1277 600 volt cables, 90c) with TFN insulation
and PVC jacket.
In-roadway conductors may be direct buried (No minimum depth required
per NEC).
2.9
Non-In Roadway Conductors
Non in-roadway conductors shall be stranded #18 AWG, Type RHH or
RHW-2 (Type EPR/Hypalon 600-volt power cables, 90C dry and 75C
wet), unless installed in conduit.
3.0
Conduit
When required, conduit shall be type 1 or 3.
3.1
Patent Allowance
The LightGuard Systems, Inc. crosswalk equipment is a licensed holder
of Utility Patent no.6,384,742 for Pedestrian Crosswalk Signal Apparatus.
All products associated with the system shall be appropriately licensed
or qualified under patent protection.
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