The Cambridgeshire Guided Busway (UK), when completed in late 2009, will be the longest guided bus system in the world. It will use similar technology to the Adelaide O-Bahn Busway, which is currently the world's longest. The guided busways combines the features of a bus and tram. A concrete track is being laid, mostly along the right of way of the disused Cambridge and Huntingdon railway. Small wheels on new buses will allow them to be guided on the track, but also run on ordinary roads between sections of track. This has advantages over a tram, which can only run on track, not ordinary roads. The use of the guideway allows for two tracks (one in each direction) to be laid in a smaller space than a roaidway. However, the system has disadvantages: busses have internal combustion engines (not electrically powered as with most trams) and so create local pollution and then have a lower carrying capacity than multi unit trams.
I have attempted to map the route of the bussway. Note that the route is only approximate and the timings are incorrect (these are based on Google maps estimate of walking speed). Also I attempted to use Googles "my maps" feature, but could not work out how to import the directions.:
View Larger Map