Maybe what would help is a reminder sign or two in the Weirs channel, one in each direction, as this place seems to have the most traffic and issues.
The sign could read:
Quote:
|
Maximum speed:
6 MPH
or
Headway speed
Check behind you
for faster traffic!
|
I added the part about checking behind you, maybe it can help?
I hate signs, but some friendly reminders may help the issue, and allow people not to be so paranoid about going too slow when there is someone having a problem behind them.