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The purpose of a transportation network is to link locations and thus confer a level of spatial continuity. Networks A and B are servicing the same territory. Still, both have a level of discontinuity (especially network A). If a transfer between those two networks is possible, their combination (network C)

In an absolute context, distance in a network is a fixed attribute that does not change. For instance, the absolute distance between New York and Boston is about 310 km. The location of the nodes of such a network is also absolute and fixed. In a relative context, distance is

Considering a set of locations (nodes) six networks strategies can be established to service them: Minimum construction costs network (A). Network where all locations are linked through a single route. Minimum accessibility network (B). Network where all locations are linked and have the same accessibility level. Nodal network (C). One

Transportation networks have three main footprints:

Many criteria can be used to classify transportation networks. Its level of abstraction can be considered with tangible network representations closely matching reality (such as a road map). Conversely, an abstract network would only symbolize the nodes and flows (such as an airline network). Since transportation networks have a geographical

Source: Adapted from William Black (2000) “An Unpopular Essay on Transportation”, Douglas Fleming lecture, Presented at the meeting of the Association of American Geographers, Pittsburgh, Pennsylvania. Several alternatives, each having a specific topology, are possible to establish a level of service through a transportation network. Each topology is reflective of

A network is a set of nodes (locations) linked by links (arcs between locations), and a graph is the symbolic representation of a network. The following attributes characterize network geometry: For a node to be linked to another node n/2 links are necessary for an even number of nodes and

A network topology is related to the arrangement of nodes and links, particularly how each node is linked with the others:

Network topology looks at the arrangement of nodes and links, particularly their locations and the nature of their connections. Network connectivity involves a specific configuration of links and nodes. Links indicate which nodes are linked and how they are linked, namely with a directional attribute such as unidirectional or bi-directional.