The Measurement and Causes of Unreliability in Bus Services
M Buchanan and R Walker, Colin Buchanan and Partners, UK
This work was completed for the Confederation of Passenger Transport. It defines the way in which bus service reliability can be measured and presents the results of surveys of reliability conducted on six different, prototypical bus services. The surveys show how and why unreliability arises and the paper explores how reliability can be improved by operational management measures alone. It then considers whether the reliability standards set for the bus industry by the Traffic Commissioners in 1999/2000 were realistic.
The paper finally considers the packages of concerted actionslikely to be necessary to deliver really reliable bus services.
Association for European Transport