When travelers hit the road for Memorial Day weekend, they should be careful when crossing railroad tracks.

It can take more than a mile for a train to stop, and when a train collides with a vehicle there can be disastrous consequences for the vehicle’s occupants.

Union Pacific’s public safety director Dale Bray says by the time a locomotive engineer sees a vehicle on a crossing, it is often too late to stop the train.

The Federal Railroad Administration says there were 1,960 incidents at railroad crossings nationwide last year and 233 deaths.