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Question

Difficulty: EasySpecial Zone Signs and Markings

When approaching a railroad grade crossing with a crossbuck sign that includes a smaller auxiliary sign reading '3 TRACKS' directly below it, what does this additional plate indicate to drivers?

  1. There are three parallel sets of tracks at the crossing, meaning another train could be approaching after the first train passes.Answer
  2. B
    Vehicles are required to come to a complete stop at least three car lengths behind the white stop line.
  3. C
    Overtaking or passing other vehicles is permitted within three hundred feet of the crossing.
  4. D
    Trains traveling through this zone are legally limited to a maximum speed of thirty miles per hour.

Answer

The auxiliary sign indicates that three sets of tracks exist at the crossing, requiring drivers to ensure all tracks are clear before proceeding.
The correct answer explains that an auxiliary plate mounted under a railroad crossbuck sign specifies the number of tracks at the crossing. This alerts drivers that after one train passes, a second train may immediately approach on another track from either direction.

Step-by-Step Solution

1
Identify the primary warning sign and auxiliary plate at the special railroad zone.
The crossbuck warns of a railroad crossing, and the lower plate specifies '3 TRACKS'.
When a crossing has multiple tracks, an auxiliary sign below the crossbuck states the exact number.
2
Determine the safety precaution required when multiple tracks exist.
Drivers must verify that all tracks are clear before crossing, as a passing train may hide another approaching train on an adjacent track.
Multiple tracks increase hazard risks because one train can conceal the approach of another.

Key Concept

Railroad Crossbuck Auxiliary Track Count Markings
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Topics

Special Zone Signs and Markings

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