Dublin is a difficult city in which to run a bus service. We do not have a proper ringroad system to take through traffic out of the city and the M50 is far too congested to serve this function. This means that the streets in the city centre are constantly clogged with traffic. As a result bus speeds and reliability and public confidence in the system have declined. We tried to break out of this vicious circle by introducing quality bus corridors. The Stillorgan Road QBC has been an outstanding success. Bus speeds have improved significantly and the numbers using the service have shot up. People now leave their cars at home and use buses instead. The Stillorgan Road QBC worked because there was sufficient road space available to facilitate it. The corridor runs mainly on the hard shoulder of the dual carriageway and, apart from Donnybrook Village, it does not have a severe pinch point and has its own dedicated space along virtually the entire route.