Guidelines on Projects with Existing or Proposed Quiet Zones

  1. Modification of existing state roads to meet Quiet Zone requirements are typically at the cost of the local agency requesting the Quiet Zone. See Chapter 11 for more information.
  2. Quiet Zone public crossings should be gated crossings with Supplementary Safety Measures (SSMs) such as:
    1. Four quadrant gates setup with maximum 2 feet separation between gate tips or 1 foot from median or channelization device with all exit and approach lanes gated.
    2. Medians with
      non-traversable
       curbs or channelization devices that extend back 100 feet from gate (or 60 feet with side streets) and all side streets within 60 feet of
      the nearest
       gate are closed; maximum 1-foot separation of gate end and curb or channelization device and all approach lanes are gated.
    3. On one-way streets,
      non-traversable
       curb extends back 100 feet from gate; 2 feet maximum separation between gates or 1 foot separation between gate and curb.
    4. A wayside horn may be used in lieu of an SSM.
  3. Any
    non-traversable
     curbs are used on roadways that do not exceed 40 mph and must be at least 6-inches high. See 49 CFR § 222.9, definition of
    non-traversable
     curb.
  4. No Train Horn (W10-9) sign or plaque (W10-9P) shown for crossings on all approaches and roadways parallel to rail within 100 feet of rail; time of day plaque shown if applicable.
  5. Any private passive crossings in a Quiet Zone include a Stop (R1-1) sign, Crossbuck (R15-1) sign, and No Train Horn (W10-9) sign on all approaches.
  6. Any pedestrian crossings include No Train Horn (W10-9) sign on all approaches.