Table of Contents

2.2.5 Public Transport Facilities


To support the provision of public transport and address the competing demands for road space, an integrated approach to the improvement of all aspects of the public transport system is required. Road based public transport has a significant role to play and may require the provision of specific facilities and priority measures for buses and trams in order to provide an appropriate level of service to on-road public transport.

Depending on the strategic significance to public transport of a particular road, intersection or interchange it may be advantageous to incorporate a range of facilities and priority measures to assist public transport services on the freeway or the intersecting road at an interchange such as:

Freeway access ramps for buses

It is not always feasible, nor beneficial, to allocate an extended bus-only lane on a major highway or freeway, especially where bus flows are not large or where the freeway flows are relatively uncongested. However, bus access to the freeway itself may be significantly delayed by traffic congestion on mixed-traffic freeway entry ramps, regardless of whether ramp-metering devices are in operation to regulate entry flows to the freeway. This may be overcome through the construction of a bus-only ramp, or a bus lane on the freeway access ramp, allowing buses to bypass traffic queues.

Linking city centre bus lanes to freeway entry/exit ramps can also provide significant bus travel time improvements.

Where a busway is provided within a freeway median or adjacent to a freeway it will often be necessary to integrate separate busway ramp terminals into or adjacent to interchanges (Figure 2.1).

Heavy rail

In appropriate circumstances it may be strategically desirable to accommodate a heavy rail service within the median of a freeway. This will result in the need for railway stations and modal interchanges some of which may be located within an interchange. Patrons of the modal interchange are likely to arrive as pedestrians from adjacent development or interchange from buses, for example. The safe and efficient movement of pedestrians, including people who have disabilities, is paramount in such cases.

Figure 2.1: Dedicated freeway entry/exit ramps for the Kwinana Freeway busway (Canning Highway Interchange)

Source: Western Australia Public Transport Authority (2004).