The first sign drivers encounter when approaching a highway-rail intersection is typically "an advance warning sign." (Option C)
This sign alerts drivers in advance of an upcoming railroad crossing, providing crucial information to ensure safety.
The advance warning sign features an iconic black "X" symbol, often accompanied by yellow and black markings, indicating the presence of a railroad crossing ahead.
This early notification allows drivers to reduce speed, be prepared to stop if necessary, and be vigilant for oncoming trains, contributing to safe navigation of railway intersections and preventing potential hazards associated with train crossings.
Full Question:
Although part of your question is missing, you might be referring to this full question:
The first sign drivers see when approaching a highway-rail intersection is usually:
A.a crossbuck sign.
B.a speed limit sign.
C.an advance warning sign.