Road - ground transportation route, flexometer - Distance measurement tool , cord - edge of croncrete that delimits the track gauge , Retaining wall - structure that supports a material , Drain - Floor apening for drainage , Total station - angle and distance measuring instrument , Viaduct - road system with bridges and tunnels , roundabout - Circular plaza wherein different land routes join, Fire hydrant - Hydrant or liquid discharge pipe with valve and mouth., Perimeter - Contour of a surface,

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