Why should a driver confirm there is enough room on the far side of the tracks before starting to cross with a school bus?

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1. Checking for space beyond the crossing has no bearing on safety
2. Stopping partway across due to traffic ahead would leave the bus in an extremely dangerous position on the tracks
3. Space beyond the crossing is irrelevant as long as the bus physically fits across the tracks, since the train will stop
4. This concern applies only to buses longer than 35 feet

Correct!

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