01594825

Component

The use of separate transport and economic models in urban planning provides a limited view of economic impacts, restricts the testing of network design options and lengthens the planning process. Furthermore, the standard methodology for economic appraisal assumes partial economic equilibrium and cannot determine the distribution of impacts from the transport sector to particular households. Computable general equilibrium (CGE) models can capture general equilibrium effects and measure welfare at the household level, but mostly lack integration with transport models and do not represent all trip generators. This paper develops an integrated traffic assignment and spatial CG E model in nonlinear complementarity form. The CGE submodel generates commuting, shopping and leisure trips as inputs into the transport submodel, which then assigns trips to the network according to user equilibrium. The resulting travel times then feed back into household prices and freight margins. Households and firms fully account for travel times in decisions on where to shop, how much labor to supply and where to source production inputs. Calibration and applications of the model are demonstrated for 14 regions and 2 industries across Sydney using GAMS/PATH on the NEOS server. The welfare of various network improvements is measured using equivalent variations.

This paper was sponsored by TRB committee ABE20 Standing Committee on Transportation Economics.

01584066

16-5035

English

23p

2016

Transportation Research Board 95th Annual Meeting

Web

Figures; Maps; References (35) ; Tables

City planning; Economic models; Households; Travel time; Trip purpose

Sydney (Australia)

Economics; Highways; Planning and Forecasting

Transportation Research Board Annual Meeting 2016 Paper #16-5035

TRIS, TRB, ATRI

Jan 12 2016 6:12PM