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• 持続可能な観光地域社会の形成のための人流分析

  2025.03

  DOI

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• ESTABLISHMENT OF AREAS BASED ON TOURIST CIRCULATORY BEHAVIOR AND EVALUATION OF PUBLIC TRANSPORTATION NETWORK IN TERMS OF INTER-AREA TOURISM

  UEMA Daisuke, KAMIYA Daisuke, UECHI Atsushi

  Japanese Journal of JSCE ( Japan Society of Civil Engineers )  81 ( 20 ) ID: 25-20046   2025 [ Peer Review Accepted ]

  Type of publication: Research paper (scientific journal)

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  <p> In recent years, the public transportation network must be improved to accommodate tourist flow against the background of changes in the travel patterns of tourists. However, there has been no analysis and evaluation of the public transportation network from the viewpoint of tourist flow. Additionally, the range of pedestrian circulation may vary between tourist destinations. Therefore, when considering a public transportation network that accommodates tourism, it is important to establish areas based on tourist circulatory behavior.</p><p> In this study, using people-flow data of tourists, we are representing tourism between areas that are established based on the circulatory behavior within the tourist destinations. Furthermore, the public transportation network between areas is expressed based on route information, and a relative evaluation method of the public transportation network from the viewpoint of tourism was developed. This evaluation method was applied to the main island of Okinawa, it became clear that there are differences in the range of pedestrian circulation and the existence of inter-area where public transportation does not accommodate tourism.</p>

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• Challenges of Tourists Evacuation in Tsunami Considering with Population Distribution

  Uechi Atsushi, Kamiya Daisuke, Arakaki Rinka

  Journal of Digital Life ( 株式会社 産経デジタル )  5 ( SpecialIssue ) ID: 2025.5.S7   2025 [ Peer Review Accepted ]

  Type of publication: Research paper (scientific journal)

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  Tourist attractions on islands are concentrated in coastal areas, and tourists are at high risk of being struck by a tsunami. It is acknowledged that tourists, due to their unfamiliarity with the area, may benefit from the evacuation guidance provided by residents. However, it is important to note that numerous issues persist within the current disaster risk reduction measures. In this study, the number of disaster victims was clarified based on the distribution of people by time of day in Ishigaki city and Miyakojima city, Okinawa Prefecture. From the perspective of evacuation support, the overlap between residents and tourists was analyzed using a “niche overlap index” to identify areas where evacuation guidance by residents is difficult and areas and time periods where support can be expected.

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• FUNDAMENTAL ANALYSIS ON VEHICLE DRIVING CHARACTERISTICS AT NIGHT FOR THE IRIOMOTE CAT ROADKILL COUNTERMEASURES

  NAKAMURA Kazuki, KAMIYA Daisuke, YAMANAKA Ryo, FUKUDA Daisuke, UECHI Atsushi, SUGA Yoshiki

  Japanese Journal of JSCE ( Japan Society of Civil Engineers )  81 ( 20 ) ID: 25-20071   2025 [ Peer Review Accepted ]

  Type of publication: Research paper (scientific journal)

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  <p> Iriomote Island was registered as a World Natural Heritage site in recognition of its biodiversity represented by rare endemic species. While ecotourism and other activities utilizing the rich natural environment are flourishing, roadkill of the Iriomote wildcat has been pointed out as a threat by the IUCN, and although measures have been taken since 1995, such as the installation of cat boxes, nine traffic accidents occurred in 2018. In this study, we analyzed the relationship between the number of tourists and nighttime automobile traffic volume in Iriomote Island through a traffic survey using a Bluetooth scanner. The ratio of nighttime traffic volume by subject vehicles was extremely small, and their travel speed tended to be lower than that of non-subject vehicles. The fact that the traffic volume increases during the tourist season and that there is a positive correlation between the number of tourists and the nighttime traffic volume suggests that it is necessary to conduct educational activities for tourists and related businesses to raise their awareness of the importance of safe driving.</p>

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• ANALYSIS OF THE BIKE-SHAREING SYSTEM UTILIZATION CHARACTERISTICS IN CENTRAL AND SOUTHERN URBAN AREAS OF OKINAWA MAIN ISLAND

  UECHI Atsushi, KAMIYA Daisuke, HIGA Sota

  Japanese Journal of JSCE ( Japan Society of Civil Engineers )  80 ( 5 ) ID: 22-00187   2024 [ Peer Review Accepted ]

  Type of publication: Research paper (scientific journal)

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  <p> The use of bicycles has been attracting attention in response to recent changes in social conditions and various issues. To promote bicycle use, although it is important to improve the environment for bicycle use and to grasp the actual status of bicycle use, there has been no sufficient analysis of bicycle use in Okinawa Prefecture.</p><p> In this paper, we clarify the actual status of bicycle use by type of use in the central and south area of Okinawa main island. Demand analysis in combination with socio-demographic data was also conducted to identify factors contributing to bicycle use. As a result, it was clarified that bicycle use is more frequent in the area where monorail stations and government facilities are located, and that bicycle use is more frequent in the morning and the evening, when traffic is congested daily.</p>

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• Study on the undergrounding and utility pole removal projects in coastal sightseeing region using tsunami evacuation simulation

  KAMIYA Daisuke, UECHI Atsushi, OBA Tetsuharu

  Artificial Intelligence and Data Science ( Japan Society of Civil Engineers )  5 ( 3 ) 480 - 486   2024 [ Peer Review Accepted ]

  Type of publication: Research paper (scientific journal)

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  <p>There has been considerable debate about the necessity of removing utility poles, yet there are significant challenges in determining the most appropriate priorities. Furthermore, while the removal of utility poles has been discussed from the perspectives of scenery, traffic safety, and disaster prevention, there has been limited research from the perspective of disaster prevention. With regard transportation roads from the perspective of disaster prevention, discussion has also been limited to remove utility poles from emergency transportation roads from the perspective of removing obstacles to disaster recovery.</p><p>This study, focused on the urban area of Ishigaki city, which is at risk of tsunami disasters. The priority of removing utility poles from the perspective of their importance as evacuation routes was examined based on an analysis of the evacuation behavior of residents and tourists. Consequently, the number of individuals evacuating a given road can be utilizes to identify which roads should be prioritized for construction without utility poles.</p>

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Presentations 【 display / non-display 】

• Evaluating the Impacts of Tourists on the Island Environments based on their Stay Time

  Uechi, A., Kamiya, D., Yamanaka, R., Fukuda, D., Suga, Y.

  EASTS 2023@Majlis Bandaraya Shah Alam, Malaysia  (Majlis Bandaraya Shah Alam, Malaysia)  2023.09  -  2023.09 

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Academic Activities 【 display / non-display 】

• 一般社団法人 交通工学研究会 

  2025.4

  -

  2026.3

  種別： Competition, symposium, etc.