Specifications

December 2013
REQUEST FOR PROPOSALS FOR
PURCHASE AND DELIVERY OF HEAVY-DUTY BUSES
RFP SRTA-2014-01
TECHNICAL SPECIFICATIONS
PAGE-33
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manufacturer shall supply a copy of its test results that indicate compliance with
the specified lighting levels at the pre-production meeting.
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c. LED light fixtures shall be located above the side windows at or near the juncture
of the coach ceiling and the side wall and may be provided over the rear door.
The fixture lenses shall be clear polycorbonate and will effective mask individual
LED’s to make them invisible with no “hot spots.” Lenses shall be sealed to
inhibit incursion of dust and insects and still be easily removable for service. All
fasteners used must be held captive in the lens assembly. Access panels shall
be provided to allow servicing of components located behind the light panels.
Interchangeability of lamps, lenses fixtures, and power supplies shall be
maximized.
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d. The light source shall be located to minimize windshield glare. High power LED
strips shall be in one-foot sections, manufactured by Nichia or Philips, or
approved equal, with expected life of the LED's to maintain 60 to 70 percent of
original brightness after 60,000 hours of operation. The brightness of each
individual light fixture shall be programmable to minimize glare. Photo sensors
shall detect and adjust lighting levels relative to ambient light for passenger
comfort.
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e. Driver module shall have built-in self-protection of thermal shut-down and restart,
and PMW (pulse width modulation) output to regulate light level.
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f. Failure of any light fixture or driver module shall be indicated via a telltale light
panel or dashboard display.
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g. The lighting assembly will be compatible with the bus manufacturer’s overhead
AC/Climate Control air distribution system, which will also include provisions for
advertising media located adjacent to the lighting, although the interior lighting
requirements shall be attained without advertising media installed. The lighting
system materials shall comply with the Federal Transit Administration Docket
90-A Specification.
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h. Interior advertisement racks shall be reinforced by use of structural members
attached directly to the coach structure. The advertisement racks shall be hinged
to provide access to the air plenum at every fixture location without removing the
fixture from the coach structure. The card racks shall be retained in the closed
position by use of threaded closing screws.
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i. Driver's light shall be Xantech Model 107276, or approved equal. Light to be
recess-mounted in the top of the window frame above driver's head. Do not
impair use by location conflict with sun visor. Location to be approved by
the SRTA. Switch to be located on the bezel of the lamp.
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15. BODY
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15.1 Construction: Body and Understructure
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a. The basic body structure shall be an integral design. The structure shall be
designed for maximum strength, reliability and durability. The bolted aluminum
body structure combines the strength of cast and forged aluminum corner
gussets with high strength extruded aluminum structural sections. These
aluminum structural sections are secured together with specially designed bolt-