There is a bridge I drive over a few times a week during rush hour. Three quite big roads lead onto it, with two of the three also going through a hellish roundabout too before that.
Conveniently theres a small road which leads down to a big supermarket next to Hellish Roundabout which avoids all main roads etc. On leaving the supermarket carpark I usually turn left and follow the roads home, but if I pop there then need to go over the bridge, I turn right and a small road leads almost directly onto the bridge.
Up until now Ive only ever used the supermarket "shortcut" on times when I actually need to go into the shop. However a few days now of sat waiting on these main roads, for some days up to 20 mins!! Im wondering if it would be unreasonable to take small road to supermarket, enter the carpark then leave straight after and take the slip onto the bridge?