A Simple Representation of a Complex Urban Transport System Based on the Analysis of Transport Demand: The Case of Region Ile-de-France

In densely urbanized areas the structure of the transport systems becomes quite complicated. Many types of transport services are available and many types of modes are being used, thus offering a wide palette of transport options. How do all these transport services and modes relate to each other? In practice it proves to be quite hard to define such a structure. A number of classifications exist, based on transport modes, or on organizational characteristics. However, they often lack a theoretical underpinning, which makes them not always easy to apply in practice. This paper presents a new methodology that focuses on the traveler's perspective: how does the traveler use the many transport services and modes that are available? This method is used to determine the functional structure of a transport system on the basis of observed trips. This method is illustrated for the case of Region Ile-de-France, the urban area of Paris, using household travel survey data.The methodology consists of three steps. First, transport services and modes are grouped into “service modes”, which are homogenous from the perspective of travelers. Second, the zones served by each service mode are identified. Third, the relationships between the service modes are identified: Spatial complementarity; Hierarchical relationship (combining a fast mode with a scarce network and a slow mode serving a dense network); and Competition. As a result, the authors obtain a strategic representation of the structure of the urban transport system of Region Ile-de-France.


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  • Accession Number: 01487616
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jul 9 2013 9:13AM