海角大神

Parisians know how strikes can plunge their lives into chaos. But when striking train drivers prevented Alix Salle from going back to work after a weekend in the countryside, she took action.

Using a long-distance ride sharing app called BlaBlaCar, Ms. Salle got a ride in a stranger's car, paying less than what she would have with the train, and discovering the virtues of socializing along the way.

With 9 million users in 12 countries, BlaBlaCar, a Paris-based Internet platform that connects drivers with empty seats with passenger looking for a ride, has become one of France's hottest start-ups. Call it the smartphone-era equivalent of hitchhiking, BlaBlaCar wants to revolutionize people's traveling habits by being a cheaper, more environmentally friendly and social alternative to the train and plane.

鈥淧eople realize that all those empty seats in car traveling between French and European cities are a big waste,鈥� says BlaBlaCar CEO Fr茅d茅ric Mazzella, who created the company in 2006 when he couldn't find a train from Paris to visit聽his family in the French countryside. 鈥淒rivers can't conceive to ride empty any more.鈥�

There's even a social aspect to it: The app's name derives from just users rate themselves on how chatty they want to be in the car, from 鈥淏la鈥� to 鈥淏laBlaBla."

It's another addition to the boom in recent years of servicing-sharing apps, which help users rent bikes (Splinster), exchange art (Artsicle), or even borrow stuff from their neighbors (NeighborGoods).

鈥淏laBlaCar is an another example of the exploding sharing economy, where the emphasis is shifting from owning to 'renting,'鈥� says Carol Coletta, an expert on the development of cities at the John S. and James L. Knight Foundation in Miami. 鈥淚t's a grand experiment that is challenging governments because they are inventing new rules for this new economy on the fly.鈥�

鈥淚f it drives us to living lighter, that鈥檚 positive,鈥� Ms. Coletta says. 鈥淚f it drives workers to compete on lowest cost, that鈥檚 problematic.鈥�

BlaBlaCar is also taking a lesson from the difficulties encountered by American ride-sharing apps Uber and Lyft. This spring, angry cab drivers brought traffic to a halt in cities across Europe to the apps, which they say are threatening their livelihood. But where聽Uber and Lyft drivers profit from their efforts, BlaBlaCar users aren't allowed to. What passengers pay 鈥� some $25 on average for a typical 200-mile journey 鈥� is used to offset the costs of fuel and tolls.

鈥淲e don鈥檛 want a driver to make a profit because then you end up in regulatory issues,鈥� BlaBlaCar co-founder Nicolas Brusson says. 鈥淚f you don鈥檛 make a profit, you don鈥檛 have to worry about a special license.鈥�

Since 2012, BlaBlaCar has expanded from France to 12 countries, with Russia being the latest addition. In July, it raised $100 million in capital funding, which it wants to use to go more global.聽

鈥淚f you look at Russia and Turkey and other emerging markets, we start linking cities that don鈥檛 even have trains,鈥� says Mr. Brusson. 鈥淲e are enabling a layer of infrastructure that isn鈥檛 there.鈥�