Indeed, in addition to car sharing, the industry is increasingly working on developing complex multi-transport solutions, such as monthly tickets that let people in cities mix and match public transport with bicycle-sharing schemes and car-sharing schemes, Mr Leo explains.

BBC: Can car sharing eliminate San Francisco's traffic jams?

With car-sharing, multi-storey car parks at stations and even bicycle hire added to its portfolio under Mr Mehdorn, Deutsche Bahn is sending the message that rail is only one part, albeit the core, of the services it provides.

ECONOMIST: Face value

Bike-sharing increases the number of trips by bicycle in a city and improves the cycle culture.

ECONOMIST: A cycling renaissance is taking place in America

Viacycle - This startup provides everything that companies, colleges or others need to set up a bicycle sharing program.

FORBES: Y Combinator's Spring 2012 Demo Day: No Funding Talk In Pitches, But Plenty Of Funding Interest

They were structurally similar to cytisine in many ways, sharing the location of a nitrogen atom in a particular place on a pair of bicycle-like carbon rings.

FORBES: Tobacco-Free