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Good Practice


Skiligne © Conseil Général Transisère

The frequentation of ski resorts in Isère is important, especially during winter holidays and week ends. Most of them suffered from bad public transport services and connections. People mainly use their car to access to ski resorts and generate important traffic jams in the valleys and in the surroundings of Grenoble. Skiligne TransIsère is a combined product (roundtrip ticket + ski pass) sold at the central bus station. Ski passes are negociated with ski resorts at special prices.

I Description of the measure

Title in original language: Transisère : skiligne et Transaltitude

Location of CNA: France

Municipality / regional entity: Grenoble

Category of the experience: Measure
Type(s) of CNA:

Principal nomination: Technological
Secondary nomination(s): Educational

Thematic field(s):

Principal field: Transport
Secondary field(s): Energy, Land use, Tourism

Spatial scale: Regional (large scale)
Time & duration:

Start date: 2007
Duration: ongoing

Key word(s): public transport, reduction of GHG, ski resorts


To reduce traffic jams, to reduce car use, to provide an access by public transport to the major tourist winter sites in Isère (16 ski resorts are served)


More generally speaking the conseil général de l’Isère has implemented since 2010 some public transports (Transaltitude) for several ski resorts in the Alps. Regular bus lines (55 seats) serving 16 ski resorts mainly during the winter season. All the Skiligne buses are leaving around 8:00 in the morning and come back around 6:00 in the evening. 2 or 3 departures are proposed in the morning (7:45, 8:30, 10:00) for the nearest ski resorts from Grenoble (Chamrousse, Lans en Vercors). The travel times depend on the ski resorts – between 1 and 2 hours - (ski resorts in Oisans like les 2 Alpes and l'Alpe d'Huez are the furthest away, the travel time is long contrary to Chamrousse and Prapoutel which are close to Grenoble). Thanks to the type of contract the transport organisation (VFD) is directly interested in the results so that the goal is to reach 80 % booking by 2014.


112 000 trips have been identifed in 2011. We can hence estimate to 30 000 the number of cars avoided and replaced by skiligne and all the buses of Transaltitude.

II Assessment criteria

Mitigation effects: Medium

We can estimate to 30 000 the number of cars avoided and replaced by Transaltitude. With a distance of approximately 55 km, we can estimate that this represented about 750 tons of CO2 saved during winter 2010/2011.

Impacts on adaptation: Neutral


Impacts on environment:

- Landscape: Positive
- Alpine ecosystems / biodiversity: Positive
- Water / soil / air: Very positive
- "Other": None

The development of public transports is a solution to decrease the number of cars and to reduce greenhouse gas emissions. Indeed the reduction of cars contributes to reduce the negative impact on mountains and to reduce climate change. Less cars, less traffic jam and less CO2 emissions and atmospheric pollution. More use of public transport and less roads. In a very first approach we can estimate, with 30 000 cars and trips with an average 55 km that 750 tonnes CO2 have been avoided in 2011.

Impacts on society:

- Social justice: Positive
- Regional / cultural identity: Neutral
- "Other": None

112 000 trips have been identified during the winter 2010/2011.Public transport makes it possible for everybody to reach ski resorts and in this way increases social justice.

Impacts on economy:

- Employment / job creation: Positive
- Added value / income: Positive
- Know how / competitiveness: Positive
- "Other": None

Revenues for the ski resorts thanks to transaltitude: 13 543 750 €. Revenues from transport: 1 079 000 € during winter 2010/2011.

Public relations impact and awareness-raising: High


Transferability: Very high

If each ski resort has a different context the experiment developed by Skiligne is however transferable elsewhere. Indeed it is possible to set up such an answer to traffic jams by a combined public transport and ski pass offer.

Cross sectoral and integrative approach: Very low

This measure is not currently integrated to other fields to reduce greenhouse gases in mountain. But some ski resorts also implement some water policy.

Good governance: Medium

Currently some meetings are organised to discuss with inhabitants and ski resorts

III Executive body and contact information

Executive body: Administration

The Conseil Général of Isère (which is a "département" in France) is in charge of transport. It has the ability and competence to describe its needs and ask to private transport companies to implement measures for them.

Contact person(s):

Name: TransIsère 
Institution: Department Conseil Général de l'Isère
Address: 7 Rue Fantin-Latour B.P. 1096 38022 Grenoble Cedex1
Phone: +33 4 76 00 60 50
Fax: +33 4 76 54 98 11 

Online information: The internet site to book and organise your trip If you want to organise your stay and travel and know more on your destination All what you want to know about skiligne

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