: Accessibility Indicators to estimate territory structuring in Nord - Pas-de-Calais

In the thematic of relations between transport networks and territorial processes, in particular that of metropolisation, we locate as spatial planners. Thus, we tend to consider transport networks as a tool for territory planning and construction. According to this point of view, this essay lies in an analysis of transport service in a metropolitan region. Applied to the case of Lille metropolitan region, the work address for opportunities of territorial and metropolitan construction offered by transportation service. Furthermore, the goal is to work out proposals of organization improvements, in an action-oriented approach. To do so, measures of accessibility are used. They are developed in software which models transport networks in a scheduled graph, using graph theory and shortest path algorithms. This equipment allows simulations, part of a forecasting approach