IEVref:845-31-082ID:
Language:enStatus: Standard
Term: access zone, <of a road tunnel>
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Definition: part of the open road immediately outside (in front of) the entrance portal, covering the distance over which an approaching driver must be able to see into a road tunnel

Note 1 to entry: The access zone begins at the stopping distance point ahead of the entrance portal and it ends at the entrance portal.


Publication date:2020-12
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