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Profile
Name：Kota Nagasaki
Affiliation：Specially Appointed Assistant Professor, Institute of Systems and Information Engineering, University of Tsukuba, Japan
Biography
Biography
2025/5：Specially Appointed Assistant Professor, Institute of Systems and Information Engineering, University of Tsukuba, Japan
2024/10-2025/4 ：Research staff, Department of Civil and Environmental Engineering, School of Environment and Society, Institute of Science Tokyo, Japan
2024/4-2024/9 ：Research staff, Department of Civil and Environmental Engineering, School of Environment and Society, Tokyo Institute of Technology, Japan
2022/4-2024/3：Research Fellow-DC2
2021/4-2022/3：Tokyo Tech Advanced Human Resource Development Fellowship for Doctoral Students
2021/4-2024/3：Ph.D. student, Department of Civil and Environmental Engineering, School of Environment and Society, Tokyo Institute of Technology, Japan
2019/4-2021/3：Master of Engineering, Department of Civil and Environmental Engineering, School of Environment and Society, Tokyo Institute of Technology, Japan
2015/4-2019/3/：Bachelor of Engineering, Department of Civil and Environmental Engineering, School of Engineering, Tokyo Institute of Technology
2012/4-2015/3/：Tokyo Metropolitan Shinjuku High School
Research Theme
Research Theme
Transportation Engineering, Civil Engineering with Angular Data
Affiliated Societies
Affiliated Societies
Japan Society of Civil Engineers
Japan Society of Traffic Engineers
Publication
Publication
Preprint
Preprint
2. Keiichiro Fujiya, Kota Nagasaki, Toru Seo: Modeling pedestrian fundamental diagram based on Directional Statistics, 2024.
1. Kota Nagasaki, Toru Seo: Understanding Impact of Angle in Urban Transportation, 2023.
Refereed Journal Articles
Refereed Journal Articles
6. Kota Nagasaki and Toru Seo: Traffic congestion analysis with directional statistics: Descriptive model by angular distributions for road network and OD demand, Japanese Journal of JSCE, 2025, in press. (in Japanese)
5. Kota Nagasaki, Shogo Kato, Wataru Nakanishi, M. C. Jones: Traffic Count Data Analysis Using Mixtures of Kato-Jones Distributions, Journal of the Royal Statistical Society Series C (Applied Statistics), Vol. 74, Issue 2, pp.352-372, 2025.
4. Kota Nagasaki and Toru Seo: Route Choice Model Based on Angular Indicator and Case Study, Japanese Journal of JSCE , Vol. 79, No. 20, 23-20059, 2023. (in Japanese)
3. Kota Nagasaki, Wataru Nakanishi and Yasuo Asakura: Analysis of Traffic Volume by the Estimated Parameter of the Mixture of Circular Distribution, Journal of Japan Society of Civil Engineers, Ser. D3 (Infrastructure Planning and Management), Vol. 78, No.5, pp.I_825-I_831, 2023. (in Japanese)
2. Kota Nagasaki, Wataru Nakanishi and Yasuo Asakura: Analysing Road Networks by Using Directional Statistics, Journal of Japan Society of Civil Engineers, Ser. D3 (Infrastructure Planning and Management), Vol. 75, No. 6, p. I_199-I_205, 2020. (in Japanese)
1. Kota Nagasaki, Wataru Nakanishi and Yasuo Asakura: Classification of Road Networks around Station by Rose Diagrams and Circular Distributions, JSTE Journal of Traffic Engineering, Vol. 6, No. 2, p. A_1-A_8, 2020. (in Japanese)
Refereed International Conference Presentations
Refereed International Conference Presentations
(*) was presented by co-author(s) at the conference, presenter(s) is/are underlined
5. (*) Keiichiro Fujiya, Kota Nagasaki, Toru Seo: Modeling pedestrian fundamental diagram based on directional statistics. Proceedings of 27th International Conference of Hong Kong Society for Transportation Studies, Hong Kong, pp. 469-476, December 2023. (Poster)
4. Kota Nagasaki, Toru Seo: Route Choice Model Using Angular Indicators. In Transportation Research Procedia, Vol. 78, pp. 238–245, 2024. (The 25th EURO Working Group on Transportation Meeting, Santander, Spain, September, 2023.)
3. (*) Kota Nagasaki, Shogo Kato, Wataru Nakanishi: Mixtures of Kato–Jones distributions on the circle with an application to traffic count data. The 14th International Conference of the ERCIM WG on Computational and Methodological Statistics (CMStatistics 2021), Virtual talk at hybrid conference, King's College London, London, UK, December 2021.
2. (*) Shogo Kato, Kota Nagasaki, Wataru Nakanishi: Mixtures of Kato–Jones distributions on the circle, with an application to traffic count data. The 13th Scientific Meeting of the Classification and Data Analysis Group (CLADAG 2021), Virtual conference, September 2021.
1. Kota Nagasaki, Wataru Nakanishi, Yasuo Asakura: Application of the Rose Diagram to Road Network Analysis, Proceedings of 24th International Conference of Hong Kong Society for Transportation Studies, Hong Kong, pp. 169-176, November 2019.
Non-Refereed Conference Presentations in Japanese
Non-Refereed Conference Presentations in Japanese
(*) was presented by co-author(s) at the conference, presenter(s) is/are underlined
7. Kota Nagasaki and Toru Seo:Traffic Congestion Analysis with Directional Statistics: Descriptive Model by Angular Distributions for Road Network and OD Demand, 68th Autumn Conference of Committee of Infrastructure Planning and Management, Tokyo, Japan, November 2023.
6. (*) Keiichiro Fujiya, Kota Nagasaki and Toru Seo: Modeling Pedestrian Fundamental Diagram Based on Directional Statistics, 68th Autumn Conference of Committee of Infrastructure Planning and Management, Tokyo, Japan, November 2023.
5. Kota Nagasaki and Toru Seo: Route Choice Model Based on Angular Indicator and Case Study, 66th Autumn Conference of Committee of Infrastructure Planning and Management, Okinawa, Japan, November 2022.
4. (*) Kota Nagasaki, Shogo Kato, Wataru Nakanishi, M. C. Jones: Mixtures of asymmetric distributions on the circle, with an application to traffic count data, Japanese Joint Statistical Meeting, Tokyo, Japan, September 2022.
3. Kota Nagasaki, Wataru Nakanishi and Yasuo Asakura: Analysis of Traffic Volume by the Estimated Parameter of the Mixture of Circular Distribution, 63rd Spring Conference of Committee of Infrastructure Planning and Management, Online, June 2021.
2. Kota Nagasaki, Wataru Nakanishi and Yasuo Asakura: Classification of Road Networks around Station by Rose Diagrams and Circular Distributions, The 39th Conference of Japan Society of Traffic Engineers, Tokyo, Japan, August 2019.
1. Kota Nagasaki, Wataru Nakanishi and Yasuo Asakura: Analysing Road Networks by Using Directional Statistics, 59th Spring Conference of Committee of Infrastructure Planning and Management, Nagoya, Japan, June 2019.
Award
Award
1. Kota Nagasaki, Wataru Nakanishi and Yasuo Asakura: Research Encouragement Award, The 39th Conference of Japan Society of Traffic Engineers, August 2019 (2019/8/7）
Thesis
Thesis
Docter dissertation：Transportation systems analysis with angle: Modeling and empirical studies
Master thesis：Parameter Estimation of Circular Distribution for Road Link Orientation around Railway Station
Bachelor thesis：Analysing Road Networks by Using Directional Statistics
Others
Others
2019/10-2020/3：Visited TU Delft in the Netherlands as a visiting researcher
2017/8：Prised 4th place in Asia Bridge Competition (BRICOM) 2017
The current picture is enjoyng eating Kaisen-don in Chiba prefecture.
Contact
Contact
E-mail：nagasaki [at] sk.tsukuba.ac.jp
Adress：3F1114, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8571 Japan
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