P-10a
Approach to a level crossing, movable bridge, or dock (200 m, left side)
Indicates a level crossing, movable bridge, or dock 200 m ahead. This marker post is placed on the left side of the roadway and is always accompanied by sign P-5, P-7, P-8, or P-27.
Category: Warning signs
Source: General Traffic Regulations (RD 1428/2003), Annex I; designs per the official sign catalog (RD 465/2025)