書誌事項
- タイトル別名
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- APPLICABILITY OF THE METHODOLOGY TO MATCH DISTRIBUTIONS OF HOUSEHOLD AND PERSON ATTRIBUTES IN THE GENERATION OF SYNTHETIC POPULATIONS BASED ON PERSON-TRIP SURVEY DATA
- セタイ オヨビ コジン ゾクセイ ブンプ オ コウリョ シタ PT チョウサ データ ノ カクダイ ケイスウ サンシュツ シュホウ ノ テキヨウ
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抄録
This study investigated the applicability of iterative proportional updating (IPU) algorithm to calculate the weight for each sample case obtained from the disaggregate survey so as to match distributions of household and person attributes in the generation of synthetic populations. The large-scale person-trip survey data conducted in Matsuyama metropolitan area was empirically applied as the disaggregate data, and the results showed that the excessive categorization of attributes would produce large errors due to the lack of sample case, sometimes inducing the failure to calculate the weight. Although the integration of the attribute categories would alleviate above problems, the excessive integration might induce the loss of original information, that is, heterogeneity of the sample case, undermining the advantage of micro-simulation approaches. Therefore, the consideration of sampling scheme is very crucial for the application of IPU algorithm (e.g. setting the sampling ratio for each attribute categories according to the marginal distributions of the population).
収録刊行物
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- 土木学会論文集D3（土木計画学）
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土木学会論文集D3（土木計画学） 67 (5), 67_I_759-67_I_767, 2011
公益社団法人 土木学会