Models in Transport Geography
There is a growing complexity and data requirements for the four common models in transport geography. Each is building upon the other,
implying for instance that the estimation of accessibility cannot be
assessed without information about distance and that spatial
interactions are derived from accessibility assessments:
- Distance. The most fundamental element of geography
in general and transport geography in particular. Distance can
be represented in
different manners, from a simple Euclidean distance
calculation to a complex estimation of a logistical distance
that considers all the tasks necessary for the realization of a
- Accessibility. Defined as the measure of the capacity
of a location to be reached by, or to reach different locations.
Therefore, the capacity and the arrangement of transport
infrastructure are key elements in the determination of
is thus based upon the concept of location and distance.
- Spatial Interaction. A
of people, freight or information between an origin and a
destination. It is a transport demand / supply relationship
expressed over a geographical space.
Routing is a
specific category of spatial interaction that considers a given
set of origins and destination for which specific (often
optimal) routes are found.
- Transportation / Land Use Models. A
trying to assess the numerous relations and feedback effects
between transportation and the spatial structure.