Système d'activation de l'offre piloté par la demande
In a two-sided carpooling market, matching efficiency depends on compatible offers and requests coexisting at the same time. When drivers do not know where and when demand concentrates, they hesitate to publish. Passengers, in turn, find few relevant offers. The market stays thin: few actors present simultaneously, low density of feasible matches.
This vicious cycle is not primarily a matching-algorithm problem. It is an information and incentive problem: without a credible demand signal, potential supply often remains inactive.
Our approach places demand at the start of the activation chain. Passengers first publish trip requests. The platform then measures those requests-spatially and temporally-to reveal corridors where needs aggregate.
Those measures are presented to drivers as strategic information: real demand exists for certain trips at certain times. Drivers then decide, fully autonomously, whether to publish an offer that responds to observed needs.
The platform never creates trips itself. It never forces publication. It simply turns expressed needs into actionable information that can activate latent supply already present in the mobility system (drivers who already travel but do not publish).
The concept sits at the intersection of several research domains: market design, two-sided platforms, demand-responsive transport, and information systems. Four structuring notions underpin it.
Épaississement du marché
A market becomes more efficient when more offers and requests coexist simultaneously-what market-design literature often calls a “thick” market.
By stimulating offers precisely where real demand is observed, the proposed approach aims to thicken the market locally: more compatible participants present at the right place and time, and therefore more matching opportunities.
Signalisation de la demande
Once aggregated, individual requests become economic signals. They reduce drivers’ uncertainty by making visible information that would otherwise remain fragmented or inaccessible.
Activation de l'offre latente
Many drivers already make trips without publishing them on a platform. That supply exists in the physical world but remains invisible to the digital market.
The proposed system does not create new trips from nothing. It reveals demand that may interest those drivers, raising the probability that they turn a travel intention into a published offer.
Réduction de l'asymétrie d'information
In many two-sided markets, one side often lacks reliable knowledge of the other side’s conditions. In carpooling, drivers generally do not know where demand is-or how intense it is.
By making demand visible as an aggregated signal, the system reduces that asymmetry. Offer-publishing decisions become better informed, without constraining driver behavior.
Réduction des déplacements inutiles
When the system knows where both individuals are - their origins and destinations - it becomes possible to reduce unnecessary travel associated with carpooling.
Unlike meeting at a fixed place (one person’s home, the other’s destination, or an arbitrary point), the meetup location is not predetermined. It is calculated to minimize total detour, taking each person’s respective paths into account.
This spatial optimization helps make ride sharing more acceptable for drivers and passengers alike: fewer kilometres travelled “for nothing,” better efficiency of the shared trip, and a smoother experience once supply and demand meet.
The essential difference is not the final match, but the order in which information flows and supply appears.
Traditional platform
Proposed system
| Criterion | Traditional | Proposed |
|---|---|---|
| Initial sequence | Supply first | Demand first |
| Platform role | Broadcast and match existing offers | Measure demand and expose it as a signal |
| Trip creation | Initiated by the driver, often without a demand signal | Still initiated by the driver, after observing demand |
| Available information | Demand often opaque to drivers | Corridors and demand intensity made visible |
| Driver autonomy | Free to publish | Free to publish - the platform imposes no trip |
Based on principles established in the literature on two-sided markets, market design, and demand-responsive transport, several potential benefits can be anticipated. These effects are presented as theoretical expectations-not as empirical results demonstrated by our platform alone.
These benefits remain contingent on context, adoption, and signal quality. They are research and market-engineering hypotheses, not operational guarantees.
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