Route number is 311. Remember it—the number stays the same everywhere: on the stop display, in apps, on the vehicle itself. Look for 311 specifically. If you're not sure you found the right stop, just ask someone nearby: 'Does bus 311 stop here?'

This route serves the La Chaux-de-Fonds (Switzerland) region. In larger metro areas, routes can pass through several districts or towns. To know for sure if it works for you, pull up the route map and check the key stops and direction.

Operator is TRN/tc. This is the official company responsible for the route. If you run into problems (rude driver, breakdown, dirty vehicle, delays)—contact them. It helps to note the time, direction, and route number—makes your complaint more specific and gets handled faster. Contact info is usually on the company website or in transit apps.

This route is part of the 'Onde Verte' transit system. Within one network, payment and transfer rules are often consistent. Terms can differ though, so check current fares and payment methods in up-to-date sources before your trip.

Full journey takes about 00:10 in normal traffic. During rush hour or road work, it can take noticeably longer. If your trip is time-sensitive, add cushion and check arrival predictions on official sources.

On transit maps this route is marked in #F0802A. Color helps you spot the line quickly and tell it apart from others. In some cities the line color appears on stop signs or even on the vehicles themselves. The exact shade might vary between sources—go by route number and endpoints instead.