Temporary Traffic Lights

[DaveReading]

and riding down the middle at 7-10mph with a queue of cars stuck behind you is the best way I can think of to create a load of cycle haters who will then ride past me at 40 with 2 inches of clearance a few days later
so please don't do that

I don't share your cynicism. Most drivers will appreciate that it's neither your nor their fault that through the roadworks isn't wide enough for them to overtake.