What is the place for DRT in the wider public transport system?

Each transport mode has operational and economic attributes that define its potential to play a role within the overall mix of options. As technologies and business concepts evolve, the transport options change too. But reality and cost-effectiveness, rather than promotional claims, should define the most appropriate choices in public policy and expenditure on them, argues Professor Peter White. He is concerned in particular about an absence of consistent examination and evaluation about what Demand Responsive Transport can deliver at an acceptable cost.