Statistical Efficient Estimation of Transportation Demand Analysis using Stated Preferences Data

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  • SPによる交通需要評価とその統計的効率性
  • SP ニ ヨル コウツウ ジュヨウ ヒョウカ ト ソノ トウケイテキ コウリツセイ

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Abstract

<p>While revealed preferences (RP) use actual data of travel behavior, stated preferences (SP) use the survey data of respondents. This study compares statistical efficiencies between RP and SP data and analyzes efficient estimation methods using Monte Carlo experiments. The results show that there is no significant difference in estimated parameters and willingness-to-pays between RP and SP data. However, the correlation between attributes of RP data tend to be high, and statistical efficiencies of RP tend to be lower than of SP. When SP data is designed to make a trade-off between travel routes, statistical efficiencies of SP can be higher than of RP.</p>

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