Study the sign shown. Which condition is this MUTCD device intended to warn about?
A horizontal curve with an advisory speed of 30 mph or less
An intersection with possible turning or entering traffic
A reduction in the number of lanes in the direction of travel
An abrupt two-lane narrowing where opposing vehicles cannot pass simultaneously without slowing✓Correct answer
Explanation
W5-1 is recommended before an abrupt width reduction on a two-lane road when opposing vehicles cannot pass through the narrow section simultaneously without reducing speed. The other choices are applications of different selected warning devices.
