Flood management is one of the most urgent problems in Southeast Asia. In this research, land use projection by GIS and statistical model, rainfall-runoff model and hydraulic model were integrated to analyze the impact of future urbanization and deforestation on flood vulnerability in a local scale. Based on land use scenarios, flood simulation was conducted. The results show that urbanization, deforestation and development of croplands will actually increase peak discharge during flood while reforestation will reduce it. Furthermore, the difference between the worst and best scenarios was estimated as 3.68km in inundated area and approximately 0.5m in flood depth in the study area. This result shows maximum difference in uncertain future. This integrated scheme would support land development plan or policy from the viewpoint of disaster risk reduction.
{"title":"Impact of Future Land Use Change on Flood Inundation Area: Case study in the Bago River basin, Myanmar","authors":"Shin Yonehara, A. Kawasaki, W. Takeuchi","doi":"10.5638/thagis.25.23","DOIUrl":"https://doi.org/10.5638/thagis.25.23","url":null,"abstract":"Flood management is one of the most urgent problems in Southeast Asia. In this research, land use projection by GIS and statistical model, rainfall-runoff model and hydraulic model were integrated to analyze the impact of future urbanization and deforestation on flood vulnerability in a local scale. Based on land use scenarios, flood simulation was conducted. The results show that urbanization, deforestation and development of croplands will actually increase peak discharge during flood while reforestation will reduce it. Furthermore, the difference between the worst and best scenarios was estimated as 3.68km in inundated area and approximately 0.5m in flood depth in the study area. This result shows maximum difference in uncertain future. This integrated scheme would support land development plan or policy from the viewpoint of disaster risk reduction.","PeriodicalId":177070,"journal":{"name":"Theory and Applications of GIS","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131533461","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This paper reports the development of the service named "Konjyaku map distributing and browsing service on old topographic map tile images". This service consists of the following three services. Firstly, we develop a web service to distribute tiled map images of old topographic maps as TMS. Secondly, we develop a web site to browse these tiled map images on the PC web browser or smartphone using Google Maps API. Thirdly, we develop a software working on Windows PC to browse these tiled map images with rich functions. By providing these services integrally, it is possible to provide an opportunity to view old topographic maps in a wide range of users.
{"title":"Development of the “Konjyaku Map Distributing and Browsing Service on Old Topographic Map Tile Images”","authors":"Kenji Tani","doi":"10.5638/thagis.25.1","DOIUrl":"https://doi.org/10.5638/thagis.25.1","url":null,"abstract":"This paper reports the development of the service named \"Konjyaku map distributing and browsing service on old topographic map tile images\". This service consists of the following three services. Firstly, we develop a web service to distribute tiled map images of old topographic maps as TMS. Secondly, we develop a web site to browse these tiled map images on the PC web browser or smartphone using Google Maps API. Thirdly, we develop a software working on Windows PC to browse these tiled map images with rich functions. By providing these services integrally, it is possible to provide an opportunity to view old topographic maps in a wide range of users.","PeriodicalId":177070,"journal":{"name":"Theory and Applications of GIS","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128088039","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This study aims to investigate the association between individual travel behaviors, neighborhood built environment, and social area type based on a geodemographics dataset. Neighborhood environment includes population density, land use mixture, road density, service level of public transportation, destination accessibility, and topography. By using person trip survey data for Kyoto Prefecture residents in 2010, the results of multilevel logistic analysis showed that social area type can explain the variations of travel mode choice for commuting behavior̶particularly the use of public transportation and vehicle, even after controlling for neighborhood environment and individual characteristics such as gender, age, occupation, and household vehicle ownership. On the other hand, there was little evidence of association between mode choice for shopping and social area type.
{"title":"A geodemographic analysis of the relationship between individual travel behavior and the neighborhood environment","authors":"Masaya Uesugi, K. Yano","doi":"10.5638/thagis.25.11","DOIUrl":"https://doi.org/10.5638/thagis.25.11","url":null,"abstract":"This study aims to investigate the association between individual travel behaviors, neighborhood built environment, and social area type based on a geodemographics dataset. Neighborhood environment includes population density, land use mixture, road density, service level of public transportation, destination accessibility, and topography. By using person trip survey data for Kyoto Prefecture residents in 2010, the results of multilevel logistic analysis showed that social area type can explain the variations of travel mode choice for commuting behavior̶particularly the use of public transportation and vehicle, even after controlling for neighborhood environment and individual characteristics such as gender, age, occupation, and household vehicle ownership. On the other hand, there was little evidence of association between mode choice for shopping and social area type.","PeriodicalId":177070,"journal":{"name":"Theory and Applications of GIS","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131034231","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Restructuring city blocks has become very important especially in central commercial zones in Tokyo. In planning city centers, the predictability of building development in a city block is crucial. In this study, we challenge this problem classifying city blocks by influential factors of location of building coverage in a city block, and then examining the predictability of building coverage in each class. The probability of building coverage for each point in a block is visualized to grasp the spatial image. With the analyses of 205 city blocks in commercial zones in Tokyo, influential factors are identified, such as presence of an adjacent wide road and its direction, northsouth length of city block, and uniformity of building use in a city block.
{"title":"INFLUENTIAL FACTORS AND PREDICTION OF LOCATION OF BUILDING COVERAGE IN A CITY BLOCK IN TOKYO COMMERCIAL ZONES","authors":"Masahiro Taima, Yasushi Asami, Kimihiro Hino, Wataru Morioka","doi":"10.5638/THAGIS.24.85","DOIUrl":"https://doi.org/10.5638/THAGIS.24.85","url":null,"abstract":"Restructuring city blocks has become very important especially in central commercial zones in Tokyo. In planning city centers, the predictability of building development in a city block is crucial. In this study, we challenge this problem classifying city blocks by influential factors of location of building coverage in a city block, and then examining the predictability of building coverage in each class. The probability of building coverage for each point in a block is visualized to grasp the spatial image. With the analyses of 205 city blocks in commercial zones in Tokyo, influential factors are identified, such as presence of an adjacent wide road and its direction, northsouth length of city block, and uniformity of building use in a city block.","PeriodicalId":177070,"journal":{"name":"Theory and Applications of GIS","volume":"79 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121669507","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Koji Obokata, Genki Oniyanagi, Kenta Sato, Masayuki Shimoda, Hiroki Chiba
After the Great East Japan Earthquake in 2011, delay of the community planning caused by the insufficiency of information sharing and consensus building in the community had become a bottleneck of reconstruction. In this research, we examined how to utilize the information system for such problem, and developed a map-based application to support solving the problem. The application has a function that illustrates how the facilities in the area would reconstruct according to its time using interactive maps and icons. In this regard, we got a good reputation: the feature makes it easy to share the concrete image of the reconstruction plan. In addition, regarding the function that supports consensus building, it was able to summarize the opinions of the residents effectively, and through the problem that emerged when we simulated its operation with local governments, we realized the necessity to consider from the standpoint of all people concerned with the community planning.
{"title":"Development of a Consensus Building System to Support Community Planning that Centers on Information Sharing Using the Map","authors":"Koji Obokata, Genki Oniyanagi, Kenta Sato, Masayuki Shimoda, Hiroki Chiba","doi":"10.5638/THAGIS.24.115","DOIUrl":"https://doi.org/10.5638/THAGIS.24.115","url":null,"abstract":"After the Great East Japan Earthquake in 2011, delay of the community planning caused by the insufficiency of information sharing and consensus building in the community had become a bottleneck of reconstruction. In this research, we examined how to utilize the information system for such problem, and developed a map-based application to support solving the problem. The application has a function that illustrates how the facilities in the area would reconstruct according to its time using interactive maps and icons. In this regard, we got a good reputation: the feature makes it easy to share the concrete image of the reconstruction plan. In addition, regarding the function that supports consensus building, it was able to summarize the opinions of the residents effectively, and through the problem that emerged when we simulated its operation with local governments, we realized the necessity to consider from the standpoint of all people concerned with the community planning.","PeriodicalId":177070,"journal":{"name":"Theory and Applications of GIS","volume":"52 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130332844","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The purpose of study is to measure accessibility to evacuate from tsunami quantitatively on the basis of geographical conditions such as coastal geometry, location of mid-to-high-rise buildings, road network, population distribution, and so on. We measured road distance from measurement points as “Geo-Evacuatability index” with spacing of approximately 50 meters to higher places or buildings than an estimated height of tsunami in coastal area in Tokushima Prefecture. An accessibility is low in most of low-lying coastal land in peripheral suburban area because higher elevation places and mid-to-high-rise buildings are not much existing. On the other hand, an accessibility is relatively high in the area with ria coast where an estimated height of tsunami is critically high. Since most of the area is relatively high in elevation in low-lying coastal land, it is accessible for residents to higher places than estimated height of tsunami. The result shows that situation is more critical in the low-lying coastal land of peripheral suburbs than that of the ria coastal area.
{"title":"Accessibility evaluation of evacuation from tsunami on the basis of geographical condition: a case study of coastal area in Tokushima Prefecture: −徳島県沿岸部を事例として－","authors":"Koichi Tanaka, Nobuhiko Komaki, Emi Kainuma","doi":"10.5638/THAGIS.24.97","DOIUrl":"https://doi.org/10.5638/THAGIS.24.97","url":null,"abstract":"The purpose of study is to measure accessibility to evacuate from tsunami quantitatively on the basis of geographical conditions such as coastal geometry, location of mid-to-high-rise buildings, road network, population distribution, and so on. We measured road distance from measurement points as “Geo-Evacuatability index” with spacing of approximately 50 meters to higher places or buildings than an estimated height of tsunami in coastal area in Tokushima Prefecture. An accessibility is low in most of low-lying coastal land in peripheral suburban area because higher elevation places and mid-to-high-rise buildings are not much existing. On the other hand, an accessibility is relatively high in the area with ria coast where an estimated height of tsunami is critically high. Since most of the area is relatively high in elevation in low-lying coastal land, it is accessible for residents to higher places than estimated height of tsunami. The result shows that situation is more critical in the low-lying coastal land of peripheral suburbs than that of the ria coastal area.","PeriodicalId":177070,"journal":{"name":"Theory and Applications of GIS","volume":"102 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121359395","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Parameter Smoothing Specification in Bayesian Geographically and Temporally Weighted Regression: Case Study of Analyzing Spatio-temporal Distribution of Population in Tokyo Metropolitan Area: ―首都圏における滞留者分布と土地利用を分析対象としたケーススタディ―","authors":"Sajad Alipoureshliki, T. Osaragi, Takuya Oki","doi":"10.5638/THAGIS.24.73","DOIUrl":"https://doi.org/10.5638/THAGIS.24.73","url":null,"abstract":"本稿では,ベイズ地理的時間的加重回帰(BGTWR)を用いてデータに備わる 時間的パターンを検出する際に,周期関数を用いてパラメータを平滑化する手法を提案 した。具体的には,まず,回帰係数間の時間的関係の長さ,傾向,および,周期性を調 整するためのパラメータ・セットを考案し,異なる平滑化関数の形状を同一の基準を用 いて比較した。次に,本手法の適用例として,パーソントリップ調査と細密数値情報(10m メッシュ土地利用)のデータを用いて,首都圏における住宅と商業施設の滞留者分布の 関係を BGTWR により分析した。BGTWR を用いることで,非ベイズモデルと比較して, 要約統計量のばらつきは小さく,安定した結果を得ることが可能である。また,ベイズ 情報量基準(BIC)の値に基づき平滑化手法を比較すると,本稿で提案した平滑化手法は, 他の手法と比較して最も良い結果を示した。さらに,得られた回帰係数の t 値の時空間 分布を視覚化することで,分析対象地域における滞留人口分布の時空間的特性は非ベイ ズモデルよりも平滑化され,滞留人口の地理的な拡散現象の理解がより容易になること を示した。","PeriodicalId":177070,"journal":{"name":"Theory and Applications of GIS","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131444162","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
: One of the most highlighted benefits of using GIS in the field of disaster risk reduction is to visualize the disaster-related information. It helps citizens to understand the post-disaster situation, disaster prone areas, and so forth for better decision making and countermeasure actions. However, GIS has not been utilized yet to visualize efficiency of disaster warning dissemination. We therefore, conducted an experiment to issue warning messages through various media, such as loudspeakers and SMS, at rural mountainous areas in Thailand, and visualized the warning messages distribution. As a result, it was clarified that although the media has both positive and negative characteristics, the each medium works as complementary manner to another for efficient warning. The result was presented visually as maps so that they would contribute for further discussion of warning dissemination strategy and for heightening of citizens ’ disaster awareness.
{"title":"An Empirical Study on Visualization of Efficiency of Disaster Warnings to Citizens: ―A Social Experiment of Warning Dissemination by Loudspeakers and SMS at Rural Mountainous Areas in Thailand―","authors":"A. Kodaka, A. Kawasaki","doi":"10.5638/THAGIS.24.125","DOIUrl":"https://doi.org/10.5638/THAGIS.24.125","url":null,"abstract":": One of the most highlighted benefits of using GIS in the field of disaster risk reduction is to visualize the disaster-related information. It helps citizens to understand the post-disaster situation, disaster prone areas, and so forth for better decision making and countermeasure actions. However, GIS has not been utilized yet to visualize efficiency of disaster warning dissemination. We therefore, conducted an experiment to issue warning messages through various media, such as loudspeakers and SMS, at rural mountainous areas in Thailand, and visualized the warning messages distribution. As a result, it was clarified that although the media has both positive and negative characteristics, the each medium works as complementary manner to another for efficient warning. The result was presented visually as maps so that they would contribute for further discussion of warning dissemination strategy and for heightening of citizens ’ disaster awareness.","PeriodicalId":177070,"journal":{"name":"Theory and Applications of GIS","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130773318","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The application possibility of the relation of the road distance to the straight line distance to the facility location planning: -Case of heliports at Toyota City, Aichi, Japan-","authors":"N. Koike, Masato Morita, Ayumi Hattori","doi":"10.5638/THAGIS.24.49","DOIUrl":"https://doi.org/10.5638/THAGIS.24.49","url":null,"abstract":"","PeriodicalId":177070,"journal":{"name":"Theory and Applications of GIS","volume":"145 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122065969","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Most of previous surveys of tourist activities using GPS devices have focused on where tourists visit and how long they stay, but not on what they actually do at each location. Thus, we have attempted to investigate the relations between the tourists’ actual activities and their spatio-temporal data. In this paper, we conducted some experiments at a zoological park to build statistical methods for estimating whether a tourist is viewing an exhibition or not from his/ her GPS logs. The result shows that their walking speed seems critical for the estimation, and, by considering additional parameters, we can estimate precisely whether 20s tourist is viewing or not.
{"title":"Predicting When and Where Tourists Have Viewed Exhibitions from GPS Logs by Using Spatio-temporal Data as Explanatory Variable : A Lesson from Surveys at Tama Zoological Park: －多摩動物公園におけるGPS調査実験をもとに－","authors":"J. Kawase, Fumiko Ito, Y. Kurata","doi":"10.5638/THAGIS.24.1","DOIUrl":"https://doi.org/10.5638/THAGIS.24.1","url":null,"abstract":"Most of previous surveys of tourist activities using GPS devices have focused on where tourists visit and how long they stay, but not on what they actually do at each location. Thus, we have attempted to investigate the relations between the tourists’ actual activities and their spatio-temporal data. In this paper, we conducted some experiments at a zoological park to build statistical methods for estimating whether a tourist is viewing an exhibition or not from his/ her GPS logs. The result shows that their walking speed seems critical for the estimation, and, by considering additional parameters, we can estimate precisely whether 20s tourist is viewing or not.","PeriodicalId":177070,"journal":{"name":"Theory and Applications of GIS","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131850287","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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