Piste cyclable vs. bande cyclable
While both piste cyclable and bande cyclable refer to infrastructure designed for bicycles, they describe completely different layouts in French urban planning. The primary difference lies in whether the bicycle route is physically separated from car traffic or merely painted on the shared roadway.
Piste cyclable
A piste cyclable is a bicycle path or track that is physically separated from the main road used by motorized vehicles. This physical separation can be achieved using a curb, a concrete barrier, a row of parked cars, or a strip of grass, offering cyclists a distinct, dedicated, and safer physical space.
La ville a construit une nouvelle piste cyclable le long de la rivière.
(The city built a new bike path along the river.)
Les enfants peuvent rouler en toute sécurité sur cette piste cyclable car elle est séparée des voitures.
(The children can ride safely on this bike path because it is separated from cars.)
Cette piste cyclable traverse le grand parc municipal de bout en bout.
(This bike path crosses the large city park from one end to the other.)
Une épaisse bordure en béton protège la piste cyclable de la circulation intense.
(A thick concrete curb protects the bicycle lane from heavy traffic.)
Nous avons roulé sur une longue piste cyclable goudronnée à travers la forêt.
(We rode on a long paved bike path through the forest.)
Il est strictement interdit aux scooters et aux motos de circuler sur la piste cyclable.
(Scooters and motorcycles are strictly forbidden from riding on the bike path.)
Le maire a inauguré une piste cyclable bidirectionnelle pour faciliter les trajets des travailleurs.
(The mayor inaugurated a two-way bike path to make commuting easier for workers.)
Bande cyclable
A bande cyclable is a bicycle lane that is simply painted directly onto the road, sharing the same asphalt as cars. It is usually marked by a solid or dashed white line on the pavement and offers no physical barrier between the cyclists and motorized traffic.
Une voiture de livraison mal garée bloque complètement la bande cyclable.
(A badly parked delivery car is completely blocking the bike lane.)
La mairie a peint une bande cyclable verte sur la droite de la chaussée pour alerter les automobilistes.
(The town hall painted a green bicycle lane on the right side of the road to alert drivers.)
Je ne me sens pas très à l'aise sur cette bande cyclable quand les gros camions me frôlent.
(I do not feel very comfortable on this bike lane when large trucks brush past me.)
La ligne blanche de la bande cyclable s'efface peu à peu à cause des fortes pluies.
(The white line of the bike lane is gradually fading because of heavy rains.)
Avant de tourner à droite, l'automobiliste doit vérifier que personne n'arrive sur la bande cyclable.
(Before turning right, the driver must check that no one is coming on the bike lane.)
Cette rue ancienne est beaucoup trop étroite pour y aménager une véritable bande cyclable.
(This old street is way too narrow to create a real bike lane there.)
Les cyclistes doivent rester dans la bande cyclable pour ne pas gêner les voitures.
(Cyclists must stay in the bike lane so as not to obstruct the cars.)
Summary
In short, choose piste cyclable when talking about a physically separated and dedicated track for bikes, which is generally safer. Use bande cyclable when referring to a painted lane on the regular road that shares the exact same space with cars. The defining distinction is always physical separation versus painted lines.