Land Use and Transport Interaction
In LUTI models, these are followed by (some of) the canonical 4 layers of Transport Modelling:
- Trip generation
- Trip distribution
- Mode choice
- Route assignment.
In each of these layers, change events are affected by decisions of actors, the availability of resources and the legislative and spatial planning context. Each layer affects the choice space of the next layer, and the scarcity of objects in a layer affect prices and development potential in a previous layer.
Similar to these layers are multi level spatial models, where spatial decisions are modeled as nested choices.
Each layer can model modeled by design, dynamic simulation and/or allocation consistent with the preferences of actors and the availability of resources, by finding equilibrium (shadow) prices aka balancing factors.
Various indicators can be derived from such a simulation that help to assess policy impact and can be used to set physical or policy constraints on possible outcomes
