In their study of transportation and communication systems, economic and social networks or urban systems, geographers are more and more often confronted with matrices of increasing size, and hence increasingly difficult to analyze and represent. The complexity of these networks, at various space scales, makes the simultaneous representation of the constituting sub-graphs difficult; grasping th...

Traffic congestion in urban road networks is a costly problem that affects all major cities in developed countries. To tackle this problem, it is possible (i) to act on the supply side, increasing the number of roads or lanes in a network, (ii) to reduce the demand, restricting the access to urban areas at specific hours or to specific vehicles, or (iii) to improve the efficiency of the existin...

1 URBAN TRAFFIC DATA MINING The development of Intelligent Transportation Systems and the diffusion of urban traffic control and monitoring by Autonomous Agents have created very large databases of realtime and historic traffic data. Therefore, data mining approaches are necessary to design effective Decision Support Systems for traffic management and user information generation. In particular,...

Shared-ride trip planning is one potential field of application within the research domain of geosensor-networks. Such a system is envisioned to provide people in need of transportation (clients) and transportation providers (hosts) with an ad-hoc, peer-to-peer communication, positioning, and planning infrastructure within an urban environment. By doing this, shared-ride trip planning can contr...