SmartBus brings you to...

The German StadtBusland and other software approaches
Hardware approaches - Example: Zuidtangent...
Vehicle/Technology driven solutions - Examples: Phileas... and Bologna...
Some examples: T Bus... , Max... and Lugano...
Even more examples, here...
Downloads - here...
Study tour offers - here...

Some background:
The difference between Light Rail and all kinds of good bus solutions (SmartBus) is evident. What we call SmartBus varies from Bus Rapid Transit like projects as the Zuidtangent bus serving the region of Amsterdam to small pragmatically renewed urban bus systems in a series of towns all over Europe, particularly some German towns.
A clear advantage of SmartBus is the rather easy phasing of the project. It is not necessary to finish facilities and dedicated infrastructure at once. For instance, buses are able to penetrate the city centre opportunistically on regular road. Zuidtangent is an example of this. O-bus (Aidelaide) and Transitway (Ottawa) are non-European examples.
Still disadvantages remain. Evidently a bus is still a bus; buses are not conceived to be very 'sexy' and the 'rail bonus' is not valid. Moreover: the capacity of buses is limited compared to light rail. In some cases high bus-pressure on vulnerable public realm of (historic) centres represents a serious disadvantage of SmartBus, let alone conventional bus. And, no through services are feasible on regional railway corridors.
To be continued…!