Structural Components of Transport Networks
The main structural components of transport networks are:
- Node. Any location that has access to a transportation
- Link. Physical transport infrastructures that enable
to connect two nodes.
- Flow. The amount of traffic that circulates on a link
between two nodes and the amount of traffic going through a node.
- Gateway. A node that is connecting two
different systems of circulation that are usually separate
networks and which acts as compulsory passage for various flows.
An intermodal function is performed so that passengers or
freight are transferred from one network to the other.
- Hub. A node that is handling a substantial
amount of traffic and connects elements of the same transport
network, or different scales of the network (e.g. regional and
- Feeder. A node that is linked to a hub. It organizes
the direction of flows along a corridor and can be considered as
a consolidation and distribution point.
- Corridor. A sequence of nodes and links supporting modal
flows of passengers or freight. They are generally concentrated
along a communication axis, have a linear orientation and
usually serve a gateway.