Okamoto, Naohisa. Simulation Analysis of Tsunami Evacuation Behavior for Residents and Seabathers Under Mixed Pedestrian-Automobile. Proceedings of the Eastern Asia Society for Transportation Studies. 2023
岡本, 直久. Analysis of Changes in Demand before and after the Restructuring of “Tsukubus”. Proceedings of the Eastern Asia Society for Transportation Studies. 2023
岡本, 直久. A Study of Recovery from Shocks Lead by Crisis in the Field of Tourism. Journal of the Eastern Asia Society for Transportation Studies. 2021. 14. 108-127
Okamoto, Naohisa. Examination of A Risk Management Through Technical Transitions in The Railway ATS System. Proceedings of the Eastern Asia Society for Transportation Studies, Vol.13, 2021. 2021