framework to generate virtual cities as sandboxes for land use-transport interaction models
| Autor: | Rounaq Basu, Joseph Ferreira, Roberto Ponce-Lopez |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Matching (statistics)
Geospatial analysis Computer science Geography Planning and Development 0211 other engineering and technologies Microsimulation Transportation Context (language use) 02 engineering and technology computer.software_genre Land use-transport interaction (LUTI) models Transport engineering 0502 economics and business Model generalizability HE1-9990 050210 logistics & transportation Transportation planning TA1001-1280 Model replicability Land use 05 social sciences Virtual cities Model transferability 021107 urban & regional planning Flow network Transportation engineering Urban Studies Zoning Transportation and communications computer |
| Zdroj: | Journal of Transport and Land Use, Vol 14, Iss 1 (2021) |
| ISSN: | 1938-7849 |
| DOI: | 10.5198/jtlu.2021.1791 |
| Popis: | One of the major critiques of land use-transport interaction (LUTI) models over the ages has been their over-dependence on individualized software and context. In an effort to address some of these concerns, this study proposes a framework to construct "virtual cities" that can act as sandboxes for testing different features of a LUTI model, as well as provide the capability to compare different LUTI models. We develop an approach to translate any prototypical transportation infrastructure network into a plausible land use zoning plan and synthetic population that are suitable for spatially detailed LUTI microsimulation of the virtual city. Disaggregate units of spatial geometry, like parcels and post codes, are generated using geospatial techniques applied to the transportation network. Households and jobs are randomly sampled from an actual city, and allocated in the virtual city based on matching density gradients. Students are matched with schools and workers are matched with jobs to complete the calibration of a synthetic population for the virtual city. Following the adjustment of behavioral models to complement the reduced scale of the virtual city, we demonstrate the integration between the land use and transportation simulation components in our LUTI model, SimMobility. The benefits of faster convergence times and shorter simulation times are clearly demonstrated through this exercise. We hope that this study, and the open-source releases of the SimMobility software with the virtual city database, can accelerate experimentation with LUTI models and aid the transition from individualized LUTI models to a common shared integrated urban modeling platform. |
| Databáze: | OpenAIRE |
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