What identifies a passive railroad-highway crossing?
Correct answer: B – The crossing has no active traffic-control device
A passive crossing has no active traffic-control device such as flashing red lights or gates. It may still have advance-warning signs, pavement markings, and crossbucks. A school bus driver must stop, search for trains, and verify that there is enough clear space to cross safely.
Source: Minnesota Commercial Driver’s License Manual — Part B, SB.4.1, “Types of Crossings”

