The Role of Frequency & Connectivity in Delivering Enhanced Bus Systems in Urban Areas: Developing a Network of Corridor Services
Geoffrey T. Clifton
This thesis extends the existing literature on the pricing and service planning of public transport by developing extensions to a model of the supply of bus services and specifying an econometric model to estimate the patronage effects of innovations in the design of bus networks at a highly disaggregate resolution. The theoretical model constructed has links with current public transport demand modelling and is built up based on a critique of the traditional principles of bus network design and a survey of existing bus networks with service levels that have incorporated measures designed to attract patronage away from the private car. Networks that have been designed to offer qualities of service more closely aligned with those offered by the private car are labelled enhanced bus services'. The theoretical model of a bus network integrates elements of both demand and supply, specifying the key demand and supply inputs into the definition of bus services that deliver given levels of frequency and connectivity. The contributions of authors including Jara-Díaz are extended in the way that the users of bus services are incorporated into the analysis. The existing literature is extended by incorporating a more realistic network design than has been attempted previously.