connectivity.ppsx
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The document discusses connectivity in computer networks, emphasizing the topological identification of arcs connecting nodes. It explains the use of connectivity groups to model multimodal transportation systems and the importance of shared characteristics among connected spatial units. Key concepts include contiguity measures and the idea of unbroken connections among geographical features.
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connectivity.ppsx
- 2. Connectivity a concept related to using computer network to link people and resources.
- 6. Topology The topological identification of arcs that connect at a node. Within a linear network, the from- and to-node numbers for each arc define connectivity. So, arcs that share a common node are connected. Connectivity groups are used to model multimodal transportation systems. For each connectivity group, you select the network sources that interconnect. In the subway and street multimodal network example below, metro lines and metro entrances are all assigned to the same connectivity group.
- 8. CONNECTIVITY FUNCTIONS Contiguity measures evaluate characteristics of spatial units that are connected. These units share one or more characteristics with adjacent units and form a group. The term UNBROKEN is the key concept. is a topological property relating to how geographical features is attached to one another functionally, spatially, or logically.