Specifications

December 2013
REQUEST FOR PROPOSALS FOR
PURCHASE AND DELIVERY OF HEAVY-DUTY BUSES
RFP SRTA-2014-01
TECHNICAL SPECIFICATIONS
PAGE-53
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parameters. Maintenance personnel shall also have access to volume adjustments on the vehicle
via the Operator Interface.
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The AVC feature shall control volume levels by time of day. The agency will have the ability to
select an interval of the day to further reduce the maximum volume levels attained. This
“Commuter Volume” feature shall go into effect on the bus automatically without Operator
intervention. The “Commuter Volume” levels are managed via the server system. The commuter
time intervals shall not be fixed, but rather will be a variable of the system. This will enable the
agency to reduce volume levels during the more quiet periods of the operation. The “Commuter
Volume” levels will control the volume of both the exterior and interior announcements.
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Automatic Passenger Counter Installation/Integration
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The Automatic Passenger Counter controller shall be integrated with the on-board Mobile Data
Computer, based on the standard SAE J-1708/J-1587 or J-1939 VAN. Automatic Passenger
Counter sensors shall be mounted so as to avoid any protrusions into the doorway passage, with
sealed windows for the infrared beams.
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Cabling to the doorway sensors shall be shielded and routed to avoid sources of electromagnetic
interference, such as fluorescent lighting ballasts. The doorway sensors and Automatic
Passenger Counter controller shall be mounted in locations that are not accessible to the vehicle
operator. The alignment of the doorway sensors shall be calibrated after installation to establish
the alignment settings for each vehicle that achieve the most accurate performance.
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Data Communication
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The Mobile Data Computer shall use the wireless data communications to send and receive
messages with the central software at any time. The data protocol used for transmission shall
accommodate the required functionality for up to at least 300 vehicles at a 30 seconds polling
interval. The system shall store data if communications are interrupted and forward data to the
central system once communications are restored.
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It shall be a rugged, all-in-one 3G/4G mobile communications solution with true enterprise class
routing, security and firewall. It shall be ruggedized with integrated Wi-Fi access point, and
minimum 4 port Ethernet switch.
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Voice Communication
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The radio shall be a Motorola CDM1250, or approved equal, with the remote mount option and
include an operator Handset that integrates the radio to the VLU system.
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20. DESTINATION SIGNS - FRONT, SIDE AND REAR
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20.1 General
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An automatic solid state electronic destination sign system, Twin Vision LED, or approved equal,
shall be furnished and installed in the coach by the manufacturer. The destination sign system shall
consist of:
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* Front Destination Sign, 16 rows by 160 columns; display height minimum 7.7
inches, display width 63”
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* Side Destination Sign, 14 rows by 108 columns; display height minimum 4.2
inches, display width 42”