Method note

Territories, nordic areas and resorts

A carpooling page covering your whole area, and an end-of-season report built to be compared with next season's.

Version of 2 October 2026. Supersedes the version of 18 September.

The nine questions your report answers

  1. Where those who carpool to your sites come from, town by town.
  2. Which sites draw which catchment areas, and at which points in the season.
  3. How they state they would have travelled without carpooling.
  4. How many stated they found their carpool.
  5. Which distribution points produced the listings, and which produced none.
  6. Where demand was expressed without any offer to meet it.
  7. What your visitors say about it, in their own words.
  8. How many journeys took place, confirmed by the carpoolers themselves.
  9. What share of your carpoolers stayed overnight on site.

For an event, the report answers the same nine questions. Two of them change: when participants get organised relative to race day, and how many listings led to a contact request, in place of the sites and the distribution points.

What you receive

A page in your colours, with your logo, your partners and the season's competitions, bringing all your sites together at a single address. Haute-Savoie Nordic gathers its 21 nordic areas there.

Your visitors find someone to ride with in two clicks, with no account and no app. You have nothing to install, nothing to administer, and no data to supply to us: everything the report contains comes from the page.

The page is live three to five working days after the agreement, with its distribution links. The report is delivered to you within the month following the end of the season.

What the report lets you do

What is observed, and at what level of evidence

Your visitors post a ride offer or join someone else's, voluntarily. Every item of data in the report carries one of these three levels.

The report is aggregated and anonymised. First name and phone number serve to connect visitors and to send the text message. They appear in no report. A town of departure with fewer than five listings is not published on its own: it is grouped with its group of municipalities.

Distance and CO₂ estimate

The distance of each listing is calculated by road route, from the centre of the town of departure to the centre of the site's town. It is stored one way, and the report doubles it. When the road route is not available, the straight-line distance is multiplied by 1.3. This coefficient is a MontioAlps convention, and the report states which listings rely on it.

From this the report derives the kilometres travelled together: the round-trip distance of the journeys confirmed by text message only, when the next-day text message is chosen. The distance and the CO₂ estimate are calculated from declared and observed data. The report marks them “Estimated”, a fourth level, distinct from the three above.

The CO₂ estimate covers only carpoolers who stated they would have come driving alone and, where the next-day text message is chosen, those whose journey is confirmed. Formula: sum of the round-trip distances of these carpoolers, multiplied by the emission factor of an average-engine passenger car, 0.25 kg CO₂e per vehicle-kilometre, ADEME Base Empreinte, item 43791, Base Carbone v23.11, uncertainty 60%. The version of the factor appears in every report.

The figure is always read with its base: “X kg of CO₂, estimated on n carpoolers stating they would have come driving alone, out of n respondents and n listings, journeys confirmed, ADEME factor 43791”. It is never called “CO₂ saved”.

The five limits of the method

These limits are written here rather than discovered later. A figure whose base is known can be defended in front of an elected official.

From one season to the next

A survey is commissioned once and holds for a year. Here, four things do not move from one season to the next: the same set of sites, the same page, the same questions to the visitor, the same handling of the data.

With the method held constant, two seasons compare. Differences in origin, in volume and in timing become legible, and the actions taken between the two seasons can be related to them. The report compares your area with itself, never with another.

What drives the volume

The number of rides depends on how visible the page is at the moments when people decide to come. That is the only lever, and it is yours.

Each placement receives its own link, provided at the outset. A placement where the link provided was not used does not appear in the report. A first season's volume is not predicted. It is observed, and it serves as the reference for the next one.

Your data

You own the data collected on your page. You retrieve it at any time in a usable format, including if you do not renew. What you lose by leaving is the seasons compared at constant method, not your data.

They work with MontioAlps

Haute-Savoie Nordic, 21 nordic areas in Haute-Savoie.

The towns of Voiron and Chambéry, stage towns of the 2026 Tour de France.

Terms

Carpooling and the report form a single whole. It is a service, on quotation and purchase order. The price follows the number of sites covered and the level of evidence chosen: declared on the page, or confirmed by the next-day text message.

To see a page in service, open montioalps.com/HSN. For a quote, write to me.

Nicolas Ramillon

Founder, MontioAlps

nicolas@montioalps.commontioalps.com+33 6 52 06 54 05