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Difficulty: MediumSpecial Zone Signs and Markings

When a supplemental 'EXEMPT' plaque is mounted below a highway-rail grade crossing sign, drivers of vehicles normally required to stop at all railroad crossings—such as school buses and hazardous material haulers—must still come to a complete stop before crossing the tracks even when no train is approaching.

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Answer

False. An 'EXEMPT' sign posted at a highway-rail grade crossing legally waives the requirement for school buses and hazardous material vehicles to make a mandatory stop before crossing the tracks when no train is approaching.
The statement is false. Under standard traffic regulations, a supplemental 'EXEMPT' sign mounted beneath a railroad crossing sign legally waives the mandatory stop requirement for vehicles that normally must stop at all railroad tracks (such as school buses, passenger buses, and trucks transporting hazardous cargo). Drivers of these vehicles may cross without stopping, provided no train or active signal indicates an approaching train.

Step-by-Step Solution

1
Identify the purpose of the 'EXEMPT' plaque at a highway-rail grade crossing.
The plaque indicates that normal statutory mandatory-stop requirements for designated vehicles have been legally exempted at this crossing.
Exemptions are placed at crossings where tracks are out of service, infrequently used, or where mandatory stopping poses an increased rear-end collision hazard.
2
Determine the legal obligation of drivers of school buses and hazardous material transporters at an exempted crossing.
These drivers may proceed across the tracks without coming to a complete stop, provided they slow down, look, listen, and verify that no train is approaching.
The 'EXEMPT' plaque explicitly modifies the standard traffic law requiring mandatory stops at grade crossings.

Key Concept

Railroad Crossing EXEMPT Plaque Rules
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Topics

Special Zone Signs and Markings

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