World Conference on Transport Research Society (Mr. Dantsuji)

2019年5月26日

[26 May 2019]

Mr. Dantsuji (D3) from our lab gave a speech at the World Conference on Transport Research Society (WCTRS), which was held in Mumbai, India.

In his presentation titled “Simulation-based joint optimization framework for mitigating congestion in multimodal urban network: A macroscopic approach”, he adopted a simulation-based optimization method for traffic demand management using 3D-MFD.

We have received many useful comments regarding the optimization algorithm and transportation network. Here, we would like to take this opportunity to express our gratitude towards them.

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 | Conferences Lab Life by Students

Hong Kong Society for Transportation Studies (HKSTS)

2018年12月11日

[8-10 December 2018]

At the 23rd Annual Conference of the Hong Kong Society for Transportation Studies (HKSTS) held on December 8th to 10th, Mr. Shiroma (M1) presented his research on causal effect analysis of the Metropolitan Tokyo expressway toll reform scheme, “Tolls and Traffic Demand: Evidence from the 2016 Toll Reform Scheme for the Metropolitan Tokyo Urban Expressway Network”. We have received comments from Dr. William Lam of the Hong Kong Polytechnic University and others on the estimation of elasticities and other issues. We would like to take this opportunity to express our gratitude towards them.

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Applied Regional Science Conference (ARSC2018)@Nagoya

2018年12月4日

[2 December 2018]

Mr. Dantsuji (D3) made a presentation at the Applied Regional Science Conference (ARSC), which was held at Nanzan University in Nagoya on December 2nd and 3rd.

In his presentation titled “Departure Time and Mode Choice in Urban Cities with Bottleneck Congestion and Crowding Cost”, he analyzed the effects of fare policy by constructing a model for simultaneous choice of transportation modes and departure times that considering hypercongestion in the road network and in-train congestion on railroads.

Prof. Takayama of Kanazawa University and Prof. Fumi of Kyoto University provided us with very useful comments on the analyses of equilibrium, fare policies, and comparison with real-world observation. Furthermore, Prof. Takayama graciously agreed to be a discussant. We would like to take this opportunity to express our gratitude towards him.

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Autumn Conference on Infrastructure Planning and Management @ Oita

2018年11月26日

[23-25 November 2018]

The 58th Autumn Conference on Infrastructure Planning and Management was held at Oita University from November 23rd to 25th. In our lab, Mr. Shiroma (M1) presented in the oral presentation category, and Mr. Abe (OB), Mr. Shinohara (OB) and Ms. Kobayashi (OG), alumni of our laboratory who graduated in 2018, presented in the poster session category. Ms. Kobayashi’s poster presentation was highly evaluated and she received the “Excellent Poster Award”. We would like to take this opportunity to those who provided comments at the conference.

For the research title, “Short-Term Impact Analysis of Expressway Toll Scheme in the Tokyo Metropolitan Area”, Mr. Shiroma (M1) examined the short-term impacts of new expressway toll scheme in the Tokyo Metropolitan Area (introduced in April 2016) on each OD pair trip traffic volume and route traffic volume. A causal effect analysis was adopted on the impact and a route choice model was constructed.

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Moreover, under the research title, “Effects of Life Events on Household Car Ownership: Analysis Using Large Household Panel Data”, Mr. Abe constructed a discrete choice model of the effects of life events such as house moving, marriage, and childbirth on changes in household car ownership and vehicle type.

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In addition, Mr. Shinohara presented his research title, “”A Study on Tour-Based Pattern Selection Model for Freight Vehicles within Urban Areas”. For his research, he constructed a tour-based pattern selection model on instead of a conventional trip-based model. He then conducted a simulation on the impact of the introduction of time-based pricing policy in urban areas on the tour patterns of freight vehicles.

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Ms. Kobayashi’s research topic was “Model Analysis of Wide-Area Sightseeing Excursion Behavior Using Wi-Fi Packet Sensing Data”. She first constructed a sightseeing behavior model of tourists in Hokkaido by collecting data from Wi-Fi packet sensors, and then conducted a simulation of tourists’ choice of visiting places.

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JICA Lecture

2018年11月21日

[19 November 2018]

The annual JICA lecture on “Urban Transport Planning” for transport practitioners in developing countries was held again. Prof. Fukuda lectured on the basics of traffic demand forecasting, including the four-step travel model, to an audience of about 20 students. Mr. Kaoru Yamada (Oriental Consultants Global Co., Ltd.), an alumnus of our lab, also attended the lecture as well.

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National Conference of the City Planning Institute of Japan @Osaka

2018年11月18日

[18 November 2018]

Mr. Tsuru, an alumnus of our lab, presented the his master’s thesis at the 2018 National Conference of the City Planning Institute of Japan (CPIJ) that held from 16th to 18th November. He adopted an analytical model for predicting the number of newly established retail store locations and withdrawals in a provincial city on a detailed spatial basis. We would like to thank all the participants for their comments at his presentation. The content of his research has also been published as the following paper.

T., Tsuru, & D., Fukuda. (2018). Determinants of establishment and closing decisions for small retail stores in a provincial city. Journal of the City Planning Institute of Japan, 53(3), 1529-1536. (English version   Japanese version)

The abstract of the paper is shown as follows.

The hollowing out of the central urban area in local cities is an urgent problem. In order to solve the problem, in local hub cities nationwide “Urban Facility Location Plan” is being planned and implemented. With this background, the objective of this study is to empirically and comprehensively reveal the factor that the retail store establish or close in local hub cities. For that, we construct a count data model that can predict the number of establishment and closing of retail stores in the detailed 1 km mesh level to analyze the impact of implementation of urban planning in detailed regional units. Based on the parameter estimation results, the size of the commercial area has a positive influence on the number of establishments, whereas it has a negative effect on the number of closings. The distance to the large shopping mall has negative effects on both the number of establishments and closings. We also find that in the central urban area the spatial effect parameter of the closing model tends to be positive suggesting that closing in neighboring areas may prompt closing in the current mesh. Finally, with the implementation of Urban Facility Location Plan in mind, we estimated the influence of induction of large commercial facilities to the central urban area on the number of locations and closings at retail stores.

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RSID8 @ University of the Philippines Diliman

2018年11月2日

[2018/10/25 ~10/26]

The Regional Symposium for Infrastructure Development (RSID8) was held at the University of the Philippines Diliman, and (M2 students) Ms. Kaneko and Ms. Arum from our laboratory presented their research.

This symposium is jointly held by the University of the Philippines, Kasetsart University (Thailand), and our university, and is an opportunity for civil engineering students to exchange research.

Ms. Arum presented “Modeling the Relationship between Transit-Oriented Development and Land Value”, while Ms. Kaneko presented “Impact of Various Tolling Schemes on Traffic on Networks: A Preliminary Investigation with Recursive Logit Route Choice Model”.
The presentations provided an opportunity for a meaningful exchange of opinions on sustainable transportation.

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We were also able to experience “Toki,” a public transportation system that runs on campus, and “Grab,” a car hailing system, which helped us deepen our understanding of transportation in Southeast Asia!

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 | Conferences Lab Life by Students

ISTS & IWTDCS 2018 @Ehime University

2018年8月7日

[4-6 August 2018]

Prof. Fukuda, Mr. Nakanishi (Research Assistant), and Mr. Azarel (M2), Mr. Hirabayashi (MS), and Ms. Kaneko (MS) presented their papers at the international conference, International Symposium of Transport Simulation & International Workshop on Traffic Data Collection and its Standardization (ISTS & IWTDCS), which was held at Ehime University.

The topics of each presenter are shown as below:

Mr. Azarel: “Spatial distribution of Blablacar’s intercity peer-to-peer ride-sharing trips: Case study of Spain”

Mr. Nakanishi: “Feature Extraction of Inter-region Travel Pattern Using Random Matrix Theory and Mobile Phone Location Data”

Mr. Hirabayashi: “Cross comparison of spatial partitioning methods for urban transportation network”

Ms. Kaneko: “Route Choice Analysis in the Tokyo Metropolitan Area Using a Link-Based Recursive Logit Model with Link Awareness”

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Moreover, Prof. Fukuda gave a lecture on the introduction of ETC2.0 based on probe data.

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Ms. Iokura (M1) presented at IATBR2018 @Santa Barbara

2018年7月18日

[18 July 2018]

Ms. Iokura (M1) presented her graduation research at IATBR2018@UC Santa Barbara (UCSB), which is a study on the extraction of tourists’ behavior pattern by Wi-Fi based continuous monitoring. We would like to take this opportunity to express our gratitude towards anyone who provided comments.

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The conference venue, UCSB, is located along the Pacific Ocean in a moderate climate. Thank you to Prof. Kostas Goulias and his staff at UCSB.

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ITEA 2018 HONG KONG

2018年7月4日

[25-29 June 2018]

Mr. Dantsuji (D2) attended the conference of the International Transport Economics Association (ITEA) held in Hong Kong and made a presentation, “Department time and Transportation Mode Choice in Cities with Road Bottleneck and Crowding in Transit”.

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This is a study that analyzes fare policies by constructing a departure time and transportation mode choice model that takes into account bottleneck congestion at the network level and on-board train congestion. The model includes new modeling techniques such as adopting MFD to represent bottlenecks, and reducing capacity as congestion increases.

In addition, Prof. Fukuda gave a presentation on the contents of Mr. Shiroma’s graduation thesis under the title, “Tolling and Traffic Demand: Evidence from the 2016 Toll Scheme Reform on Urban Expressway Network in the Tokyo Metropolitan Area”. It is a causal effect analysis that considering the price change as a natural experiment situation.

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