Source: Adapted from U. Blum and L. Dudley (2001) Report of the 109 round table on transport economics, Transport and Economic Development, European Conference of Transport Ministers.

Network Structure

Conceptually, three major network structures can be established to service territories:

• Centralized. One center has privileged accessibility and thus represents the dominant element.
• Decentralized. Although the center is still the point of highest accessibility, the network is shaped in a way that sub-centers have also significant levels of accessibility.
• Distributed. No center has a level of accessibility significantly different from the others.

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