Appendix C - Limited Use Warning System with Walk Light

Operating Requirements

1.1  Battery backup of a minimum of 8 hours must be provided.

1.2  Power monitor lights must be provided.

Signal Requirements

1.3  A Limited Use Warning System with Walk Light must meet the specifications below:

  1. must be installed on each side of the grade crossing and face a crossing user approaching the grade crossing;
  2. must include a signal head that displays a signal indicating to a crossing user that it is safe to proceed when railway equipment is not approaching. This signal head must be extinguished when railway equipment is approaching;
  3. The signal head must be as specified in sections 2 to 5, excluding the last paragraph of section 4.1.1, of the ITE “Pedestrian Traffic Control Signal Indications - Part 2: Light Emitting Diode (LED) Pedestrian Traffic Signal Modules” prepared by the Joint Industry and Traffic Engineering Council Committee, published by the Institute of Transportation Engineers, dated March 19, 2004, except for the following aspects:
    1. 12VDC pedestrian module is to be used instead of a 120VAC input voltage;
    2. the operating voltage range must be 9 – 15VDC, and the light must shut off at 7.3VDC or less; and
    3. References to “LED Pedestrian Signal Module” or “Module” are to be read as “Walk Light”.
  4. The walk light indicating that it is safe to proceed must be extinguished a minimum of 20 seconds plus the clearance time before the arrival of railway equipment at the crossing surface.
  5. The clearance time must be based on design vehicle and must be calculated in accordance with article 10 of the GCS (cited in Part A).

Signage and Post Requirements

1.4  Signage indicating how to use the Limited Use Warning Systems with Walk Light as illustrated in Figure C-2 and must:

  1. be mounted on the mast under the walk light signal head as indicated in Figure C-1; and
  2. have a silver background that is reflective with silk screened black or vinyl lettering. Where required by law, the word “Arrêt” may replace the word “Stop”, or may be added to the Stop Sign.

1.5  A Stop sign must be as shown in article A2.2.1 of the Manual of Uniform Traffic Control Devices for Canada (cited in Part A) and must meet the applicable specifications A1.6 of that Manual. Where required by law, the word “Arrêt” will replace the word “Stop”, or may be added to the Stop sign. The Stop sign must be mounted on the mast as shown in Figure C-1.

1.6  An Emergency Notification sign must be located at each Limited Use Warning System with Walk Light Assembly.

Figure C-1 – Limited Use Warning System with Walk Light Assembly

Text version for Figure C-1

Figure C-2 – Instruction Sign

Text version for Figure C-2

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