The Transisere network

Transisère, the transportation network operated by the General Council of Isère

  • It provides a unique zone fares for everyone in Isère;
  • A single visual identity for every player operating the network;
  • A network of points of sale on the whole area;
  • A more effective public transport solution.

 Several dozens of companies with their easily recognizable white and blue coaches operate the network under contract to the Department (some still sport the colors yellow and blue).

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The network brings together more than twenty carriers, all under contract with the Department of Isère. The mission of these carriers is to operate one or more bus lines entrusted to them and to offer residents of Isère a high-performance public transport service
Years after years, the public transport network expands, the transit network and the efficiency of provided services are increasing.
Thus, thanks to key bus and coach stations in Grenoble and Villefontaine, the network is equipped with high-quality services routes called “Lignes Express”. 

The Department carries out actions to improve the network, both in terms of rolling stock and infrastructure. Thus, since June 16, 2020, a VRTC (Reserved Way for Collective Transport) has been set up. This starts at the Veurey-Voroize entry ramp (n ° 13) towards Grenoble and will end on the RN481, to the right of the exit ramp towards Grenoble Gares / Europole (n ° 16) in order to guarantee a regularity of travel times while providing an alternative to the automobile.

The Department, always with the objective of being as close as possible to Isérois, wished to offer them a single interlocutor and set up a manager of the services associated with the network; Transisère Services. This entity is responsible, in particular, for customer relations (Allo Transisère, complaints management, etc.). In addition, Facebook pages are animated for the Express 1, 2, 3, 4 and Express 5-6-7 lines, in order to discuss daily on the news of the lines.

In the future, efforts will be focused on strengthening intermodality and complementarity between the different modes of transport. With this in mind, the Transisère network has been using the Quandra card since April 2011. This contactless card allows you to travel on the entire Transisère network, the Isère urban networks and the TER with a single medium. Payments are made easier with the gradual deployment of contactless bank card payment in all coaches in the Transisère network. Since September 30, 2019, occasional users can buy a transport ticket by SMS.

In addition, the Department is working on the development of new mobility services such as carpooling, organized hitchhiking and multimodal information. A carpooling line is active in the Grésivaudan sector and the establishment of a second line is scheduled for 2020 in Bièvre-Valloire. On the Matheysin plateau, the practice of hitchhiking has been based on a partnership with Rézo Pouce since 2018. Finally, the Department also provides a multimodal information service itinisère. To facilitate intermodal travel, racks that can carry up to six bicycles are installed at the back of coaches on the regular lines of Oisans, Matheysine, Vercors and Balcons de Belledonne.

The Department rewards virtuous trips via a simple and free Libravoo loyalty program. The validation of journeys with the Wherera card on the Transisère network and the use of carpooling lines allow you to accumulate gift points and take advantage of exclusive offers.

Transisère in few numbers:

  • 992 vehicles
  • 7 443 stops daily served;
  • 382 local routes;
  • 71 routes connecting the department including 8 Lignes Express (express routes).
  • During winter, ski resorts are connected thanks to the Transaltitude services
  • This represents a budget of more than 80 million euros for the Transisère network.

Carbon footprint

When you use public transportation (171 kgeqCO2/traveller.km), you may reduce up to 20% of your carbon emission compared to the use of your private vehicle.


Transport services: CO2 emissions display is mandatory since October 1st 2013. A decree published in the Journal Officiel (official bulletin giving details of laws and official announcements) in April 18th 2012, sets October 1st 2013 as the date from which public transports users have to be informed of the quantity of carbon dioxide emitted by the mode(s)of transport they use.


In order to favour the most eco-friendly mode of transport, the Grenelle II Act (the latest French environmental law) imposes on every transport provider (organizing the transportation of persons or goods) to inform users of the environmental impact assessment of their services.

As part of the 2019 innovations, in addition to promoting the latest generation of less polluting diesel coaches, four lines connecting Grésivaudan to the agglomeration of Grenoble will be equipped with NGV coaches running on natural gas from the start of 2020.