I would go with the 4 answer, but remove 4. "Dont know" has always been a redundant option, and just takes the emphasis and vote share away from constructive votes. In reality if you dont have an opinion, say nothing.

The 5 answer option sort of trips over itself.

2) Yes, but with effective crowd, traffic and parking controls
and
4) No, not unless there are effective crowd, traffic and parking controls
are in effect the same answer. Yes if the crowd/parking problems are sorted.

Either way, good luck getting it sorted. Would be nice to keep events going in FH