Patent No. US7840427 (titled "Shared transport system and service network") on Feb 12, 2008. The application was issued on Nov 23, 2010.
’427 is related to the field of ground transportation logistics and real-time resource allocation. It specifically addresses the inefficiencies of underutilized private vehicle capacity, such as empty seats during daily commutes, by integrating these personal vehicles into a dynamic, ad-hoc transit network that complements existing public infrastructure.
The underlying idea behind ’427 is to transform a chaotic stream of individual vehicle movements into a structured, searchable transit network by abstracting geographic routes into discrete nodes. Rather than matching raw GPS coordinates or specific street addresses, the system maps vehicle trajectories onto a predefined grid of pick-up and drop-off points, effectively treating every participating private car as a temporary bus or train with a predictable set of stops.
The claims of ’427 focus on a computer-implemented method and network for matching transport supply and demand through a specific node-based abstraction process. The independent claims require establishing an electronic registry of vehicle capacity and user demand, then calculating the intersections between a vehicle's intended journey and a network of nodes to represent that journey as a simplified set of pick-up and drop-off points for the matching engine.
In practice, the invention functions by monitoring the real-time location and spare capacity of registered vehicles and comparing them against user requests. A key implementation feature is the use of stochastic modeling to predict future capacity based on historical patterns, allowing the system to provide users with high-confidence arrival estimates even before a specific driver has logged onto the network for their morning commute.
This approach differs from prior carpooling solutions by moving away from rigid, pre-arranged schedules between known associates. By utilizing continuous coordinated proximity—verifying the ride via the simultaneous movement of the driver’s and rider’s mobile devices—the system creates a secure, automated, and high-trust environment that allows for spontaneous, anonymous, and verifiable peer-to-peer transit transactions.
In the late 2000s when ’427 was filed, personal transit was characterized by a sharp divide between fixed-route public infrastructure and underutilized private vehicles, at a time when ridesharing was typically implemented using static, pre-arranged carpooling groups. While GPS and mobile communication devices were becoming more common, systems commonly relied on manual coordination or central dispatching rather than real-time, ad-hoc matching of excess capacity. Technical constraints in data processing and network latency made the dynamic integration of private vehicles into a broader, multi-modal transit model non-trivial, often leaving drivers and passengers with significant information gaps regarding route availability and participant trust.
The disclosed invention represents a technical advancement through the architectural integration of private transport capacity into a dynamic, real-time network that functions as a feeder for mass transit systems. By utilizing a stochastic model based on historical and real-time journey data—including start/end points and spare capacity—the system enables the automatic generation of schematic availability maps and transfer instructions, overcoming the technical constraint of uncertainty in ad-hoc transit. Furthermore, the implementation of a proxy messaging system and automated security verification protocols, such as out-of-route alerts and identity matching, enables a trusted environment for casual users that was previously unattainable in decentralized transport models.
This patent contains 17 claims, with claims 1 and 15 serving as the independent claims. The independent claims focus on a ground transportation network and method that utilizes a computer network to match spare vehicle capacity with user demand by abstracting geographic journeys into a set of nodes representing pick-up and drop-off points. The dependent claims serve to further specify technical implementations such as the use of GPS data, near-field communication for journey tracking, real-time traffic monitoring, stochastic modeling of journeys, and the generation of user displays like departure boards.
Definitions of key terms used in the patent claims.
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