Transportation impact assessment on urban development using NETSIM

Akinori Morimoto*, Hirotaka Koike, Katsunori Suzuki, Tatsuya Seki

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)


The equilibrium between land use and transportation system has been an important issue in the city planning. Transportation Impact Assessment is a measure to make the equilibrium by balancing the relationship between urban development and transport facilities. First, this paper discusses about the development patterns which do not cause the road congestion in a hypothetical city with grid type network structure. By using a traffic simulation model, NETSIM, maximum value of floor area ratio (FAR) to avoid congestion is calculated in various situations. The result shows allowable level of FAR is much underestimated than the current legal limitation level considering the existing road capacity. Next, the model was applied to the actual city area with the existing road network. After constructing network of wider city area in computer model, we simulate the traffic impact generated by new development in the CBD. It was found that road congestion due to the new development is observed not only on immediately surrounding road but also in much wider area in the city, because of the change of the shortest path demanded by other traffic flows.

Original languageEnglish
Title of host publicationComputing in Civil and Building Engineering
EditorsR. Fruchter, F. Pena-Mora, W.M.K. Roddis, R. Fruchter, F. Pena-Mora, W.M.K. Roddis
Number of pages8
Publication statusPublished - 2000 Dec 1
Externally publishedYes
EventProceedings of the Eight International Conference on: Computing in Civil and Building Engineering - Stanford, CA, United States
Duration: 2000 Aug 142000 Aug 16

Publication series

NameComputing in Civil and Building Engineering


ConferenceProceedings of the Eight International Conference on: Computing in Civil and Building Engineering
Country/TerritoryUnited States
CityStanford, CA

ASJC Scopus subject areas

  • Engineering(all)


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