Private companies want to replace public transport. Should we let them?

Companies like Uber and Citymapper are scrapping for a piece of the mass transit market - with or without the support of public bodies

The sleek black van seemed a lot like a taxi. After summoning it to my location in central London using my smartphone, I walked a short distance to the pick-up point and clambered in. But then, just as I moved to close the door, a stranger climbed in after me.

She introduced herself as Anna. It was Anna's third time using Smart Ride, the new service from Citymapper, the route planning app that has branched out to offer its own transport services. Smart Ride uses a fleet of minivans that move around the city on a fixed network, matching up passengers based on pick-up points and destinations. Citymapper calls it "a solution for dynamic shared transportation in cities". Essentially, it's a cross between a taxi and a bus.