Faculty Profiles - YAMAMOTO Toshiyuki

Papers - YAMAMOTO Toshiyuki

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取替更新行動間の相互影響を考慮した世帯の自動車取替更新行動モデルの構築

木村誠司，山本俊行，北村隆一

土木計画学研究・講演集 Vol. 20 page： 623-626 1997

パネルデータを用いた連続時間を考慮した個人の離散選択行動の動的モデル化

藤井　聡，米田和也，北村隆一，山本俊行

土木計画学研究・講演集 Vol. 20 page： 177-180 1997

これからの交通需要分析・予測のための交通調査手法の課題

西井和夫，北村隆一，飯田恭敬，杉恵頼寧，石田東生，屋井鉄雄，森川高行，内田敬，藤原章正，張峻屹，宇野伸宏，佐々木邦明，伊藤雅，藤井聡，清水哲夫，倉内文孝，山本俊行

土木計画学研究・講演集 Vol. 20 page： 529-534 1997

ロードプライシング導入時における経路・出発時刻選択行動分析 Reviewed

山本俊行，吉田洋，藤井　聡，北村隆一

第17回交通工学研究発表会論文報告集 page： 201-204 1997

ロードプライシングが個人の経路・出発時刻に及ぼす影響に関するモデル分析

吉田洋，藤井　聡，山本俊行，北村隆一

土木学会第52回年次学術講演会講演概要集第４部 page： 52-53 1997

意向データと行動データの両者を用いた世帯における自動車保有期間のモデル分析

冨永公規，山本俊行，北村隆一

土木学会第52回年次学術講演会講演概要集第４部 page： 138-139 1997

ドライバーの学習過程を考慮した道路交通システム解析

中山昌一朗，藤井聡，山本俊行，北村隆一

平成9年度土木学会関西支部年次学術講演会講演概要 page： IV-89 1997

A Discrete-Continuous Analysis of Time Allocation to Two Types of Discretionary Activities Which Accounts for Unobserved Heterogeneity Reviewed

Ryuichi Kitamura, Toshiyuki Yamamoto, Satoshi Fujii and Srikanth Sampath

Transportation and Traffic Theory: Proceedings of the 13th International Symposium on Transportation and Traffic Theory page： 431-453 1996

Language：English Publishing type：Research paper (scientific journal)

A discrete﷓continuous choice model of time allocation to two types of discretionary activities is formulated based on the concept of random utility maximization. The model development takes into account the discreteness inherent in daily activity engagement and time allocation (i.e., one type of activity may not be engaged, therefore no time may be allocated to it at all, during a day). Without requiring simplifying assumptions other than the one that at least one of the two types of activities will be engaged, the utility model is formulated as a doubly﷓censored Tobit model.
This theoretical framework is applied to study daily time allocation to in﷓home and out﷓of﷓home discretionary activities while using, as explanatory variables, work schedules and commute characteristics as well as residential, household and personal attributes. A weekly time﷓use data set from the Netherlands is used in the statistical analysis. To account for heterogeneity in the data set comprising repeated measurements of daily time use for each respondent, an error component is introduced into the doubly﷓censored Tobit models. A non-parametric approach is adopted for model estimation using mass points. Behavioral implications of model estimation results are discussed. The validity of a procedure to correct estimated t-statistics proposed for repeated measurement data is also discussed.

A Model Choice Model which Accounts for Vehicle Availability as Determined by Intra-Household Interactions Reviewed

Toshiyuki Yamamoto, Satoshi Fujii, Hiroshi Yoshida and Ryuichi Kitamura

Infrastructure Planning review Vol. 13 page： 535-542 1996

Authorship：Lead author Language：Japanese Publishing type：Research paper (scientific journal)

Misspecification of the decision maker's choice set causes inconsistent estimation of discrete choice model. This study presents a methodology to account for the heterogeneity in travel mode choice sets that results from vehicle availability. Assuming vehicle availability is affected by intra-household interactions and varies from time to time, this study develops a linear structural equations system of vehicle availability while taking intra-household interactions into account.

世帯における自動車保有期間に及ぼす予定要因と予定外要因の影響について

山本俊行，松田忠士，北村隆一

土木計画学研究・講演集 Vol. 19 page： 489-492 1996

交通計画におけるパネル調査の方法論およびパネルデータ解析手法に関する研究

北村隆一，飯田恭敬，杉恵頼寧，石田東生，西井和夫，屋井鉄雄，兵藤哲朗，内田敬，張峻屹，宇野伸宏，佐々木邦明，伊藤雅，古屋秀樹，藤井聡，清水哲夫，倉内文孝，山本俊行

土木計画学研究・講演集 Vol. 19 page： 617-623 1996

鉄道の利用可能性を考慮した交通機関選択行動分析

山田純也，山本俊行，藤井聡，北村隆一

土木学会第51回年次学術講演会講演概要集第４部 page： 356-357 1996

世帯における自動車保有期間に関する一考察

山本俊行，松田忠士，北村隆一

平成8年度土木学会関西支部年次学術講演会講演概要 page： IV-29 1996

国際会議報告：第13回運輸交通理論国際シンポジウム（ISTTT）

藤井聡，山本俊行

土木学会論文集 Vol. 548/IV-33 page： 71-72 1996

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