We are finding that simply the presence of people with bright yellow jackets and signs acts as a big deterrent. Vehicles who start to turn into the roads, see us then back out and go the other way.
I did a stint yesterday evening, and was very nervous in advance. I anticipated angry exchanges with drivers. In reality, there were no arguments at all, but one van driver did say he was going to his home, then drove all the way through. In fact, it was very sociable (although chilly). We were joined by a few neighbours, and mostly had a pleasant chat.
If any more residents would like to help out, please see Rachel at 58 Denmark St.