At the top turn right into Littlemore Road which becomes #Cowley Road as it crosses into #Littlemore. At the roundabout turn left into Long Lane, then right through the pedestrian underpass under the Ring Road. TOA has a gate just where this underpass comes out which is always open at the time I arrive - and now we've found a helpful staff member who makes sure that it remains open until we're gone. (previously I had to exit with the cars and go around the school property via Sandy Lane)