01091552

Component

https://doi.org/10.3141/2077-15

http://scholar.google.com...lman&publication_year=2008

Firms are key drivers of urban growth along with households, yet data on businesses and commercial vehicle movements can be difficult to obtain. An understanding of firm behavior over time is critical in anticipating urban futures and addressing transportation, land use, and other concerns. Firm birth and death, migration, and location choice are defining events in a firm’s life cycle, and a study of firm evolution requires estimating and applying models for each. Such an exercise is hindered primarily by a lack of quality microdata for businesses. A basic framework is proposed for modeling firm demographics by using a microsimulation approach. Year 2005 employment point data for the Austin, Texas, region and 7 years of aggregate data from the Statistics of U.S. Businesses have been used to simulate firm entry, exit, and evolution over time and space. A Markov process is used to anticipate firm growth and contraction, along with logit and Poisson models for firm location choice. Austin’s commercial vehicle survey data are used to estimate commercial trip generation and distribution models, and applications of these are tied to forecasts of firm counts by location over time. Simulation results for both low- and high-growth scenarios suggest an increasing movement of firms toward central zones.

01118269

English

pp 113-121

2008

Transportation Research Record: Journal of the Transportation Research Board

9780309125895

Print

Figures (5) ; References (46) ; Tables (4)

Businesses; Choice models; Commercial vehicles; Demographics; Economic growth; Industrial location; Land use; Logits; Markov processes; Microsimulation; Transportation planning; Trip distribution; Trip generation; Urban growth

Austin (Texas)

Economics; Highways; Planning and Forecasting; I10: Economics and Administration; I72: Traffic and Transport Planning

TRIS, TRB

Jan 29 2008 4:56PM

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