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What do those 'exempt' signs at some railroad crossings mean?

Best Answers

This means commercial passenger and hazardous materials vehicles are exempt from the requirement to stop prior to entering the crossing. read more

The Exempt signs mean that the train engineer will not be blowing the horn as a warning at that crossing, so vehicle drivers need to be extra cautious and look for trains before proceeding across the crossing. read more

Buses and some other types of commercial vehicles are required to stop at all railroad crossings in order to make sure there is no train coming. This is true even at crossings that have been cut off and can no longer be approached by a train. When there is an Exempt sign at the crossing they are not required to stop. read more

Buses and some other types of commercial vehicles are required to stop at all railroad crossings in order to make sure there is no train coming. This is true even at crossings that have been cut off and can no longer be approached by a train. read more

Image Answers

Exempt Railroad Crossing | The "EXEMPT" signs mean that ...
Source: flickr.com

Further Research

In-Service Safety Series
www.nhtsa.gov

Railroad Crossing "Exempt" sign?
boards.straightdope.com