Today sees Route U9 transfer from Arriva The Shires to Abellio London with 3 existing Dennis Dart SLF single deckers. These buses were previously with Thames Travel in Oxford but have been left vacant in recent times.
More buses like this will be coming for Route 455, but will be Caetano Nimbuses not Dennis Dart SLF's. This is also 2011's last service change, with the next being Route 160 in late January 2012.
