by
JE Abraham
Department of Civil Engineering
University of Calgary
2500 University Drive NW
Calgary, Alberta
CANADA T2N 1N4
tel: 403-230-5897
fax: 403-282-7026
email: jabraham@ucalgary.ca
and
JD Hunt
Department of Civil Engineering
University of Calgary
2500 University Drive NW
Calgary, Alberta
CANADA T2N 1N4
tel: 403-220-8793
fax: 403-282-7026
email: jdhunt@ucalgary.ca
presented at the 8th Computers in Urban Planning and Urban Management Conference, Sendai, Japan, May 2003
March 2003
Click here to view the paper in adobe acrobat format
An economic market approach to urban system modelling is described, where all interactions are characterized as exchanges in a market. This leads to a natural partition of an integrated urban model into submodels based on the category of good or service being supplied or demanded, the type of agent making the demand or supply, and the time and place of interaction. Actors communicate through 6 defined operations on markets, decoupling the algorithms representing different behaviour. Agent based approaches to simulation are a natural extension of the market approach, allowing a transaction based simulation of heterogeneous spatial markets with individual agents making specific offers in specific places at specific times, and other agents accepting those offers at future specific times. Incorporating many existing modelling methods into such a framework requires a set of average prices by segmenting markets by commodity category, space and time, and wrapping the modules in interfaces that recast the inputs and ouputs into market operations. The paradigm is applied to two existing modelling frameworks: the Sacramento MEPLAN model and the Oregon statewide TLUMIP model.
Land Use Transport Interaction Modelling; Model Theoretical Framework; Market Treatments