Cyclists in Paris no longer have to stop at every red traffic light - new rules mean that in certain circumstances they can ignore the signals and keep going. The aim is to make the city's roads much safer.
It's easy to enumerate the downsides of Paris cycling.
Parisian drivers can be rude and aggressive behind the wheel. They sound their horns loudly and gratuitously. They stop willy-nilly on busy roads to run errands or do a bit of shopping. Diplomatic plates are the worst.