Centrally Located Busways: Problems of Design and Implementation
COBAIN P, London Transport Buses, and CRACKNELL J, Traffic and Transport Consultants, IrK
There is increasing recognition that buses should be afforded priority as part of an effective and sustainable transport policy. In recent years there has been substantial growth in bus priority schemes in UK cities implemented as part of polices to encou
There is increasing recognition that buses should be afforded priority as part of an effective and sustainable transport policy. In recent years there has been substantial growth in bus priority schemes in UK cities implemented as part of polices to encourage the use of public transport. The schemes vary and inehide bus lanes, traffic signal priority, queue relocation techniques with bus overtaking and exemptions from general traffic regulations for buses. Despite the array of techniques available, kerbside with-ftow bus lanes still remain the most common way to attempt to protect buses from the effects of traffic congestion However, despite the potential benefits of conventional kerbside with-flow bus lanes, their effectiveness is often greatly reduced by lack of enforcement, particularly when there is illegal parking.
Measures have been sought to overcome some of the problems of conventional bus priority measures. One possibility is to provide bus lanes in the centre of the road, as is often the case with light rail systems, rather than at the kerbside. For the purpose of this paper a cenWally located busway is defined as a bus only lane with at least one lane of non priority traffic on either side. Such systems may be one or two way for buses.
This paper looks at the design issues associated with centrally located busways and relates the issues to two schemes which have been considered in east London but which have not yet been built. Brief reference is also made to central busways in other countries. The paper concludes by arguing that the perceived problems associated with centrally located busways in the UK can be overcome and that it would be possible to construct and operate viable schemes.
Association for European Transport