Ample use of horns should be required for 70mph operating speeds - any local low noise arrangements should be invalidated as drivers are violating traffic laws, virtually ignoring them, and there is no effective enforcement of those laws from the police.

If you had cameras all over the place and automatic tickets that would help. Right now it is growing anarchy on the roads and the RR horns are needed.

The motorcyclist might have been scared off of doing stupid stuff if he heard a loud horn that meant the train was right on top of the crossing even if he couldn't see it coming.