JP3730931B2 - Regional earthquake damage situation prediction search system - Google Patents

Regional earthquake damage situation prediction search system Download PDF

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JP3730931B2
JP3730931B2 JP2002112187A JP2002112187A JP3730931B2 JP 3730931 B2 JP3730931 B2 JP 3730931B2 JP 2002112187 A JP2002112187 A JP 2002112187A JP 2002112187 A JP2002112187 A JP 2002112187A JP 3730931 B2 JP3730931 B2 JP 3730931B2
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earthquake damage
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JP2003307571A (en
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晴男 三浦
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服部測量設計株式会社
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Description

【0001】
【発明の属する技術分野】
この発明は、GIS(Geographic Information System;地理情報システム)を利用するコンピュータにおいて実行される地図情報検索システムに関し、より詳しくは地域別に地震被害状況を予測できる地域別地震被害状況予測検索システムに関する。
【0002】
【従来の技術】
大規模な地震の発生による被害状況は各地域ごとに大きく異なる。この地震被害状況は、例えば盛土、河川などの土地条件、地盤、地層、施設等のその地域を特徴付ける様々な特性が複雑に重なりあって現実の地震被害状況の強弱を具現する。近年、東海地方に大規模な地震が発生するという予測もあり、各地域の状況に合致した地震対策が望まれている。一方、地域特性を表す図面、例えば盛土地域図、河川地域図、軟弱地盤地域図などが個別に作成され、それぞれの目的に利用されている。
【0003】
地震被害の程度は、概念の異なる幾つかの条件が合わさって発生していること、各地域特性に依拠して異なることが報告されている。しかし、各地域毎の地震被害予測は技術的に確立されていないため、経験により判断されている。
【0004】
【発明が解決しようとする課題】
上記各種の目的に応じて作成された地域特性を示す地図は、その作成目的にのみ通常は利用され、地震被害状況を予測する上で一面的な情報は提供しているものの、地域の地震被害を予想することは各種の情報を複合的に考慮する必要があり、地域別地震被害状況の客観的予測は困難であった。さらに、地震の被害が予想される各地域は全国に分布して広範囲であり、各自治体、研究機関が予想および対策を模索しているものの地域特性に応じた被害状況を予測することは困難を極め、このため簡便に且つ精度良く地域別地震被害状況を予測できるシステムへの期待は高いものであるが、この種のシステムは従来知られていなかった。
【0005】
この発明は、地域別地震被害状況を自動的に予測できる地域別地震被害状況予測検索システムを提供することである。
またこの発明は、地域別地震被害状況予測検索を実行するためのプログラムを提供することである。
【0006】
【課題を解決するための手段】
この発明の地域別地震被害状況予測検索システムは、地域特性を表す特性エリア情報を特性種類毎に記憶する特性エリア記憶手段と、検索対象地域の施設、位置等を示す基準地図情報を記憶する地図情報記憶手段と、検索対象地域の地域特性を表す少なくとも1以上の特性エリア情報を前記特性エリア記憶手段から呼び出して各特性エリア情報毎に識別可能に同一画面上に表示させ、前記検索対象地域の基準地図情報を前記地図情報記憶手段から呼び出して前記画面上に前記特性エリア情報に重ねて表示させる、制御手段と、制御手段により呼び出された特性エリア情報および基準地図情報を一画面上に表示するための表示手段と、表示された情報を出力する手段と、を備えている。
【0007】
この発明のプログラムは、コンピュータにおいて地域別地震被害状況予測検索を実行する。
【0008】
【発明の実施の形態】
図1は地域別地震被害状況予測検索システムのブロック図を示し、基本的にはパーソナルコンピュータにおいて実行される。図1において、処理装置1にはコンピュータ全体の制御を行う制御装置2、地域特性を表す特性エリア情報を特性種類毎に記憶する特性エリア記憶領域301、検索対象地域の施設、位置等を示す基準地図情報を記憶する地図情報記憶領域302を有する記憶装置3、外部記憶装置を備えている。入力装置4はキーボード401、マウスまたは光学的読取り装置(OCR)402を含み、処理装置1に対して指示を与え、各種の特性エリア情報、基準地図情報を取り込むことができる。制御装置2は特性エリア情報、基準地図を所定の記憶領域に格納し、複数の特性エリア情報の重ね合わせ、重なりエリア毎に地震被害危険度の計算および地震被害優先順位の決定等の地域別地震被害状況予測検索処理を行い、指示に従って出力装置5のディスプレイ501またはプリンタ502へ出力する。
【0009】
図2は、本地域別地震被害状況予測検索システムの基本動作を説明する概念図である。記憶装置3には、地域ごとに特性エリア情報と、位置図と、系統図と、完工図とが記憶されている。位置図は、該当地域の建築物、市町村名等の位置、地形を示す一般の地図であり国土地理院から発行され、電子情報として蓄積されている。基準地図は、検索対象地域の施設、位置等を示し、地震被害状況の程度を重ね合せ表示するための基礎になる図、さらに以後の地震被害対策に使用するための基準として使用される。この例では図2に例示するように、下水道のマンホール位置、管路、管路番号を示す系統図を基準地図として使用している。一つの系統図即ち一系統は、一つの下水道の処理施設へ連絡する全管路を表示しており、管路は該管路を特定する管路番号と共に正確な位置が表示されている。系統図に示される管路は次の特性に分類される:地下水位特性に関係する(イ)管路水没区域図または管路;社会的特性に関係する(ロ)重要な幹線管路、(ハ)その他の幹線管路、(ニ)防災拠点または避難所等からの排水を受ける管路;管きょ特性に関係する(ホ)マンホール間延長(1スパン)30m以上の管路、(ヘ)平均土被り2m以下の管路。完工図は、各管路の工事に伴う地下埋設物等の情報を記載した図面であり各管路ごとに作成されており、記憶部3に蓄積される。各特性エリア情報を示す特性図は、特性毎に特性条件を満たす区域の輪郭線をコンピュータ上で描画して作図される。
【0010】
図2に示すように、制御装置2は、特性エリア情報を系統図と重ね合わせて出力でき、また表示した系統図に記載された管路番号に該当する完工図を記憶部3から読み出すことができ、また表示した系統図に対応する地域の位置図を読み出して両図を対応付けることができる。即ち、系統図と位置図は相互に呼出しでき、また系統図と完工図は相互に呼出が可能であり、系統図と特性エリア情報は重ねて表示可能である。また、上述の(イ)〜(ヘ)に示す特徴の管路は入力装置4から指定して表示させることができ、例えば画面上に表示された系統図から所望の特性を有する管路(ロ)のみを選択して表示させることができる。また、(イ)〜(ヘ)の管路の特徴を識別し易くするために(イ)〜(ヘ)の管路ごとまたは各特性ごとに色分け表示できる。
【0011】
本システムに利用される地域ごとに各特性エリア情報を有する地図には次の例がある。a盛土地域図(埋立て地を含む)、b氾濫平野・海岸低地図(平坦化地)、c扇状地図(1.5万年以降の沖積扇状地)、d河川地域図、e断層地盤地域図、f飽和砂質土地盤地域図、g軟弱地盤地域図、h沖積層厚10m以上の地域図、i過去の地震の地盤等変化地域図、j液状化危険度中以上の地域図、k震度5弱以上が予想される地域図。これらの特性エリア情報は、紙上の地図からOCR等のスキャナにより直接読み込まれるかまたは電子情報の形態で記憶媒体から読み込まれることもでき、特性エリア記憶領域301に記憶される。各特性エリア情報は相互に識別可能に透過性の薄い色によりエリア全体を着色してもよく、また輪郭線のみ着色しても良く、また異なる線種の輪郭線により表しても良い。
【0012】
地域別地震被害状況予測検索を行うための一つの地震被害評値基準を与えるため、上記特性エリア情報a〜kを次のように区分する。特性エリア情報a〜dを土地条件特性Aに、特性エリア情報e〜gを地盤特性Bに、特性エリア情報hを地層特性Cに、特性エリア情報iを過去の地震特性Dに、特性エリア情報j、kを地震特性Eに区分する。表1は特性エリア情報の上記区分を表している。
【0013】
【表1】

Figure 0003730931
上記特性エリア情報はコンピュータの表示画面上において市販されているGIS用アプリケーションソフトを使用して作成することができる。ラスターデータである地図情報を取り込み画面に表示させ、画面上で特性エリア情報を表す地形のエリアの変化点(図3において○印を付して示す)を選定しクリックし、エンターキーを押して所望の特性エリア情報を有するエリアを画定する。選択されたエリアの重なりを選択して背景の地図情報を削除すると、図4に示すようにベクターデータ(輪郭)により示される特性エリア情報が作成される。作成された特性エリア情報は特性エリア情報記憶領域301に記憶される。
【0014】
次に特性エリア情報を利用した地震被害状況予測評価方法について説明する。
特性エリア情報優劣加重
地域別地震被害状況予測検索処理の実行に対し、上記特性エリア情報の評価に対して優先順位を付すことができる。この優先順位付けは各地域の特性を総合的に考慮して行われる。例えば、兵庫県南部地震において被害程度の大きさに着目し、被害に関係の深い土地特性Aを優先させてその4つの特性エリア情報a、b、c、dに順次優先順位1、2、3、4を付すことができる。但し、断層が存在する場合は断層地盤地域図eに最高の優先順位を定める。このように各地域特性を考慮し、表1の各特性エリア情報a〜kに優先順位を決定する任意の加重値を定める。この地域特性に応じて決定された各加重値は入力装置4から入力され、記憶部3に特定した地域の加重値情報として記憶される。記憶された加重値情報は権限のあるオペレータにより変更、削除することができる。さらに同一地域の系統図を特性エリア情報a〜kに重ね合わせ、(イ)〜(ヘ)に示す管路特性を考慮した優先順位を定めることもできる。
【0015】
特性エリア情報優劣均一
地域別地震被害状況予測検索処理の実行に対し、上記特性エリア情報の評価に対して優先順位を付さないこともできる。特性エリア情報に優劣を付すことは予め当該地域特性を知る客観的判断を必要とする。全国各地域別に客観的判断を行うことは困難である。そこで、各地域ごとに知られた上記特性エリア情報a〜kの優劣を付さずに均等に取り扱い、調査対象とする地域において対応する特性エリア情報が重なった数に比例して地震被害状況の程度が高くなるとするものである。従って、各特性エリア情報l〜kには「1」が付され、調査対象地域の各特性エリア情報の重なりエリアの地震被害状況が数値により表示され得る。
【0016】
次に地域別地震被害状況予測検索処理動作について説明する。この動作は市販されているGISソフト(商品名SISソフト)を使用し、本発明の動作に適用するためにプログラムの改良が加えられた。図5は特性エリア情報の重ね合わせを説明する図であり、図6は処理動作のフローを示している。図6のステップS1において、特性エリア記憶領域301から当該特性が及ぶエリアの輪郭を示す同一地域の各特性エリア情報a、b、c、dが同一の縮尺で読み出される。これら4つの特性エリア情報は、図6に示すように異なる線種の輪郭線により相互に識別される。この例では特性エリア情報aに優先加重「4」を、特性エリア情報bに優先加重「3」を、特性エリア情報cに優先加重「2」を、特性エリア情報cに優先加重「1」をそれぞれ割り当てるものとする。優先加重の数値が高いほど地震被害状況予測が悪い、換言すれば被害対策調査を要する優先順位が高いことを意味している。この割り当てられた優先加重は特性エリア情報と共に画面上に表示させることができる(ステップS2)。ステップS3において図4に示すように、読み出された各同一地域の4つの異なる特性エリア情報は同一画面上において重ね合わされる。ステップS4において、各特性エリア情報a〜dの重なりにより生じる各重なりエリアおよび非重なりエリアのエリアごとの優先加重を計算しその合計値または優先順位(優先加重の合計値の大きいほど優先順位が高い)を表示しても良い。ステップS5において、優先加重合計値即ち優先順位が異なるエリアをそれぞれ分離して個別に表示する。この際、分離したエリアの優先加重合計値および/または優先順位を共に表示しても良い。
【0017】
例えば図6において、優先加重「1」または優先順位7を指定すると該当する特性エリア情報dの非重なりエリアが加重合計値「1」と共に画面に表示される。勿論、オペレータは各特性エリア情報a〜dが重ねあわされた画面を見ながらマウスを操作して所望の優先加重のエリアを分離することができる。優先加重「1」〜「5」、「7」、「9」に該当するエリア(輪郭)が色別表示され、且つ調査優先順位1〜7が各個別の画面にそれぞれ自動的に表示されように設定することができる。この例では優先加重「6」、「8」、「10」に該当する重なりエリアは存在しないので、該当する優先加重が指定されると画面にエリアは表示されない。
【0018】
調査優先順位毎に分離された各エリアはそれぞれ単独にまたは当該エリアが存在する位置図と重ね合わせて印字出力しても良い。位置図と重ね合わされた調査優先順位を示すエリア情報は、該当する地域における重要な地震対策情報となる。
【0019】
ステップS6において、ステップS5において得られた各調査優先順位を伴うエリア情報は、記憶部3から読み出された調査対象地域の系統図とそれぞれ重ね合わせることができる。系統図は上述したように地震被害程度に直接関係する管路情報が上記特性別に色分け表示されており、各分離されたエリア情報に重ね合わせることにより当該エリアに属するインフラクチャの予測被害状況を知ることができる。
【0020】
前述の図5および図6の説明において特性エリア情報a〜dに優先加重「4」〜「1」を付して重ね合わせ、重なりエリアおよび非重なりアリアの加重合計すなわち優先順位を決定する特性エリア情報優劣加重法を採用したが、特性エリア情報優劣均一法を採用することもできる。この場合は、特性エリア情報a〜dに優先加重「1」が付されて重ねあわされる。図4において4つの特性エリア情報の重なりはないので特性エリア情報a、b、cの3つの重なりエリアが優先加重「3」となり、優先順位は1となる。特性エリア情報b、cおよび特性エリア情報c、dおよび特性エリア情報a、bが重なる3つのエリアはそれぞれ優先加重「2」となり、優先順位は2となる。4つの非重なりエリアは優先加重「1」であるから優先順位は3となる。従って、系統図または位置図と重ね合わせて印字出力される優先順位のエリア情報は優劣加重法を採用した場合と大きく異なることになる。
【0021】
なお、上述の(イ)〜(ヘ)に示す特徴の管路が調査地域の特性に照らして特に重要性が有る場合は、(イ)〜(ヘ)の管路特性を地域別地震被害状況予測検索処理において特性エリア情報a〜dと共に優先順位決定の要素に加えても良い。
【0022】
図7と図8は、作成された特性エリア情報a〜dを系統図に重ね合わせる図6のステップS6における具体的画面操作を例示する図である。図7において、重ね合わせに要するファイルの台帳をクリックすると、位置図、特性エリア情報、系統図、地域別の優先順位のエリア情報など地震被害予測に必要な情報のメニューが表示される。この例では、特性エリア情報としてa盛土地域図、d河川地域図、g軟弱地盤地域図をそれぞれ選択し、且つ施設平面図(系統図)を選択すると、図8に示すように系統図に特性エリア情報a、d、gが重ね合わされて表示される。なお、図8においては識別し難いが、各特性エリア情報a、d、gはそれぞれピンク、青、黄緑の色別輪郭線によりエリアごとに容易に識別できる。
【0023】
【発明の効果】
この地域別地震被害状況予測検索システムによれば、地域特性を考慮した地震被害状況予測が容易に実行できる。さらに地震被害に直接関連する特性エリア情報は重ね合わせることができ、また地域特性を考慮して各特性エリア情報は自由に優先順位を付けることができるので地域に合った検索システムが得られる。また、検索された地域は予想される地震被害がエリア別に優先順位を付して表示されるので危険度に応じた対策をたてることができる。また基準地図情報(系統図)と特性エリア情報を重ね合わすと、地震被害発生の危険度を考慮した管きょ路線の対策をたてることができ、さらに社会的インフラクチャをアクセスする基礎となる管路番号と地震被害危険度とを対応付けることができる。
【図面の簡単な説明】
【図1】 この発明の地域別地震被害状況予測検索システムの概略システム構成図である。
【図2】 この発明の地域別地震被害状況予測検索の概略説明図である。
【図3】 特性エリア情報の作成プロセスを示すコンピュータ画面である。
【図4】 コンピュータ画面上で作成された特性エリア情報の輪郭を表示する画面である。
【図5】 優先加重を付した特性エリア情報の重ねあわせと優先順位別に分離されたエリアを示す重ねあわせ説明図である。
【図6】 地域別地震被害状況予測検索のプロセスを示すフロー図である。
【図7】 重ねあわせ処理のメニューを例示するコンピュータ画面図である。
【図8】 重ねあわせ処理された結果を表示するコンピュータ画面図である。
【符号の説明】
1 処理装置
2 制御装置
3 記憶装置
4 入力装置
5 出力装置[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a map information retrieval system executed in a computer using a GIS (Geographic Information System), and more particularly to a regional earthquake damage situation prediction retrieval system capable of predicting an earthquake damage situation for each region.
[0002]
[Prior art]
Damage caused by large-scale earthquakes varies greatly from region to region. This earthquake damage situation embodies the strength of the actual earthquake damage situation by complicatedly overlapping various characteristics that characterize the area, such as land conditions such as embankments and rivers, ground, strata, and facilities. In recent years, there is a prediction that a large-scale earthquake will occur in the Tokai region, and earthquake countermeasures that match the conditions of each region are desired. On the other hand, drawings representing regional characteristics, such as embankment area maps, river area maps, and soft ground area maps, are individually created and used for their respective purposes.
[0003]
It has been reported that the degree of earthquake damage is caused by a combination of several conditions with different concepts, and varies depending on the characteristics of each region. However, earthquake damage prediction for each region has not been technically established and is judged by experience.
[0004]
[Problems to be solved by the invention]
The maps showing regional characteristics created for the various purposes described above are usually used only for the purpose of making them, and provide one-sided information for predicting the earthquake damage situation, but the earthquake damage in the area. It is necessary to consider various information in combination, and it is difficult to predict the earthquake damage situation by region. In addition, the areas where earthquake damage is expected are distributed throughout the country, and although local governments and research institutions are looking for predictions and countermeasures, it is difficult to predict the damage situation according to the regional characteristics. For this reason, there is a high expectation for a system that can easily and accurately predict earthquake damage by region, but this type of system has not been known.
[0005]
The present invention is to provide a regional earthquake damage situation prediction search system that can automatically predict an area earthquake damage situation.
Moreover, this invention is providing the program for performing the earthquake damage condition prediction search according to area.
[0006]
[Means for Solving the Problems]
The region-specific earthquake damage situation prediction search system according to the present invention includes a characteristic area storage means for storing characteristic area information representing regional characteristics for each characteristic type, and a map for storing reference map information indicating facilities, positions, etc. of the search target area. Information storage means and at least one or more characteristic area information representing regional characteristics of the search target area are called from the characteristic area storage means and displayed on the same screen so as to be identifiable for each characteristic area information. The reference map information is called from the map information storage means and displayed on the screen so as to be superimposed on the characteristic area information, and the characteristic area information and the reference map information called by the control means are displayed on one screen. Display means for outputting and means for outputting the displayed information.
[0007]
The program of the present invention executes a regional earthquake damage situation prediction search in a computer.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 shows a block diagram of a regional earthquake damage situation prediction search system, which is basically executed in a personal computer. In FIG. 1, a processing device 1 includes a control device 2 that controls the entire computer, a characteristic area storage region 301 that stores characteristic area information representing regional characteristics for each characteristic type, and a standard that indicates a facility, position, and the like of a search target region. A storage device 3 having a map information storage area 302 for storing map information and an external storage device are provided. The input device 4 includes a keyboard 401, a mouse or an optical reader (OCR) 402, can give instructions to the processing device 1, and can capture various characteristic area information and reference map information. The control device 2 stores characteristic area information and a reference map in a predetermined storage area, overlaps a plurality of characteristic area information, calculates earthquake damage risk and determines earthquake damage priority for each overlapping area, etc. Damage state prediction search processing is performed, and output to the display 501 or the printer 502 of the output device 5 according to the instruction.
[0009]
FIG. 2 is a conceptual diagram illustrating the basic operation of the regional earthquake damage situation prediction search system. The storage device 3 stores characteristic area information, a position diagram, a system diagram, and a completion drawing for each region. The location map is a general map showing the location, topography, and location of buildings, municipalities, etc. in the area. The location map is issued by the Geospatial Information Authority of Japan and accumulated as electronic information. The reference map shows facilities, positions, etc. in the search target area, and is used as a basis for superimposing and displaying the extent of the earthquake damage situation, and as a reference for use in subsequent earthquake damage countermeasures. In this example, as illustrated in FIG. 2, a system diagram showing the manhole position, pipe line, and pipe number of the sewer is used as the reference map. One system diagram, i.e., one system, displays all the pipelines that communicate with one sewerage treatment facility, and the pipelines are displayed with their exact numbers together with the pipeline numbers that identify the pipelines. The pipelines shown in the system diagram are classified into the following characteristics: (a) Pipe submergence area map or pipeline related to groundwater level characteristics; (b) Important trunk pipelines related to social characteristics ( C) Other trunk lines, (d) Pipes that receive drainage from disaster prevention bases or evacuation centers, etc .; (e) Extensions between manholes (1 span) that are 30 m or longer (f) ) Pipeline with an average earth covering of 2 m or less. The completed drawing is a drawing that describes information such as underground buried objects associated with the construction of each pipeline, is created for each pipeline, and is stored in the storage unit 3. The characteristic diagram showing each characteristic area information is drawn by drawing on the computer the outline of the area that satisfies the characteristic condition for each characteristic.
[0010]
As shown in FIG. 2, the control device 2 can output the characteristic area information superimposed on the system diagram, and can read the completed construction map corresponding to the pipeline number described in the displayed system diagram from the storage unit 3. In addition, it is possible to read out the location map of the area corresponding to the displayed system diagram and associate both diagrams. That is, the system diagram and the position diagram can be called each other, the system diagram and the completed diagram can be called each other, and the system diagram and the characteristic area information can be displayed in an overlapping manner. Also, the pipelines having the characteristics shown in (a) to (f) above can be designated and displayed from the input device 4, and for example, a pipeline having a desired characteristic (b) from the system diagram displayed on the screen. ) Can be selected and displayed. Further, in order to make it easy to identify the characteristics of the pipelines (a) to (f), it is possible to display by color for each pipeline (a) to (f) or for each characteristic.
[0011]
There are the following examples of maps having characteristic area information for each area used in the system. a Filled area map (including landfill), b Flood plain / coast low map (flattened area), c fan map (alluvial fan after 15,000 years), d river area map, e fault ground area map , F saturated sandy land area map, g soft ground area map, h alluvial layer thickness of 10m or more, i past change earthquake ground map, j liquefaction risk medium or higher area map, k seismic intensity A regional map where more than 5 is expected. The characteristic area information can be directly read from a map on paper by a scanner such as an OCR or can be read from a storage medium in the form of electronic information, and is stored in the characteristic area storage area 301. Each characteristic area information may be colored in the whole area with a light color that can be distinguished from each other, or may be colored only by an outline, or may be expressed by an outline of a different line type.
[0012]
The characteristic area information a to k is classified as follows in order to provide one earthquake damage evaluation value standard for performing a regional earthquake damage situation prediction search. Characteristic area information ad is land condition characteristic A, characteristic area information eg is ground characteristic B, characteristic area information h is strata characteristic C, characteristic area information i is past earthquake characteristic D, characteristic area information j and k are divided into seismic characteristics E. Table 1 shows the above classification of characteristic area information.
[0013]
[Table 1]
Figure 0003730931
The characteristic area information can be created by using commercially available GIS application software on a computer display screen. Map data, which is raster data, is captured and displayed on the screen. On the screen, the change point of the terrain area representing the characteristic area information (shown with a circle in FIG. 3) is selected and clicked, and the enter key is pressed to select the desired area. An area having the characteristic area information is defined. When the overlap of the selected areas is selected and the background map information is deleted, characteristic area information indicated by vector data (contour) is created as shown in FIG. The created characteristic area information is stored in the characteristic area information storage area 301.
[0014]
Next, an earthquake damage situation prediction evaluation method using characteristic area information will be described.
A priority can be given to the evaluation of the characteristic area information with respect to the execution of the earthquake damage situation prediction search process by characteristic area information superiority / inferiority weighted area. This prioritization is performed by comprehensively considering the characteristics of each region. For example, paying attention to the magnitude of damage in the Hyogoken-Nanbu Earthquake, priority is given to the four characteristic area information a, b, c, and d in order of priority, 1, 2, 3 with priority given to the land characteristic A that is closely related to damage 4 can be attached. However, when a fault exists, the highest priority order is set for the fault ground area map e. In this way, considering each regional characteristic, an arbitrary weight value for determining the priority order is determined for each characteristic area information a to k in Table 1. Each weight value determined in accordance with the region characteristic is input from the input device 4 and stored in the storage unit 3 as the weight value information of the specified region. The stored weight value information can be changed and deleted by an authorized operator. Furthermore, it is possible to superimpose the system diagrams of the same area on the characteristic area information a to k, and to determine the priority order in consideration of the pipe characteristics shown in (a) to (f).
[0015]
It is also possible to give no priority to the evaluation of the characteristic area information with respect to the execution of the earthquake damage situation prediction search process for each characteristic area information superior and inferior uniform area. Giving superiority or inferiority to the characteristic area information requires an objective judgment to know the regional characteristics in advance. It is difficult to make an objective judgment for each region in the country. Therefore, the above-mentioned characteristic area information a to k known for each area is handled equally without dominance, and the earthquake damage status is proportional to the number of overlapping characteristic area information in the area to be investigated. The degree will be higher. Accordingly, “1” is attached to each characteristic area information 1 to k, and the earthquake damage situation of the overlapping area of the characteristic area information in the investigation target area can be displayed numerically.
[0016]
Next, the regional earthquake damage situation prediction search processing operation will be described. For this operation, commercially available GIS software (trade name SIS software) was used, and the program was improved to be applied to the operation of the present invention. FIG. 5 is a diagram for explaining superimposition of characteristic area information, and FIG. 6 shows a flow of processing operations. In step S1 of FIG. 6, the characteristic area information a, b, c, and d of the same region indicating the outline of the area covered by the characteristic is read from the characteristic area storage area 301 at the same scale. These four characteristic area information items are distinguished from each other by contours of different line types as shown in FIG. In this example, priority weight “4” is assigned to characteristic area information a, priority weight “3” is assigned to characteristic area information b, priority weight “2” is assigned to characteristic area information c, and priority weight “1” is assigned to characteristic area information c. Each shall be assigned. The higher the priority weighting value, the worse the earthquake damage situation prediction, in other words, the higher the priority for conducting damage countermeasure surveys. The assigned priority weight can be displayed on the screen together with the characteristic area information (step S2). In step S3, as shown in FIG. 4, the read out four different characteristic area information of each same region are superimposed on the same screen. In step S4, priority weights are calculated for each of the overlapping areas and non-overlapping areas caused by the overlapping of the characteristic area information a to d, and the total value or priority (the higher the priority weight, the higher the priority). ) May be displayed. In step S5, priority weighted total values, that is, areas having different priorities are separated and displayed individually. At this time, the priority weighted total value and / or the priority order of the separated areas may be displayed together.
[0017]
For example, in FIG. 6, when priority weighting “1” or priority order 7 is designated, the non-overlapping area of the corresponding characteristic area information d is displayed on the screen together with the weighted total value “1”. Of course, the operator can operate the mouse while viewing the screen on which the characteristic area information a to d are overlapped to separate desired priority weighted areas. Areas (contours) corresponding to priority weights “1” to “5”, “7”, “9” are displayed by color, and survey priorities 1 to 7 are automatically displayed on each individual screen. Can be set to In this example, there is no overlapping area corresponding to the priority weights “6”, “8”, and “10”, and therefore no area is displayed on the screen when the corresponding priority weight is specified.
[0018]
Each area separated for each survey priority may be printed out individually or in combination with a position map where the area exists. The area information indicating the priority of investigation superimposed on the position map is important earthquake countermeasure information in the corresponding area.
[0019]
In step S6, the area information with each survey priority obtained in step S5 can be overlaid with the system diagram of the survey target area read from the storage unit 3, respectively. In the system diagram, as described above, the pipeline information directly related to the extent of earthquake damage is color-coded by the above characteristics, and the predicted damage status of infrastructure belonging to the area is known by overlaying it on each separated area information be able to.
[0020]
In the description of FIG. 5 and FIG. 6 described above, the characteristic area information ad is overlaid with priority weights “4” to “1”, and the weighted sum of overlapping areas and non-overlapping areas, that is, the priority area is determined. Although the information superiority / inferiority weighting method is employed, the characteristic area information superiority / inferiority uniform method can also be employed. In this case, the priority weight “1” is added to the characteristic area information a to d and the characteristic area information is overlapped. In FIG. 4, since there is no overlap of the four characteristic area information, the three overlapping areas of the characteristic area information a, b and c have the priority weight “3” and the priority is 1. The three areas where the characteristic area information b and c, the characteristic area information c and d, and the characteristic area information a and b overlap each have a priority weight of “2”, and the priority is 2. Since the four non-overlapping areas have a priority weight of “1”, the priority is 3. Accordingly, the priority order area information that is printed out and superimposed on the system diagram or the position diagram is greatly different from the case where the superiority / inferiority weighting method is adopted.
[0021]
If the pipelines with the characteristics shown in (b) to (f) above are particularly important in light of the characteristics of the survey area, the pipeline characteristics of In the predictive search process, it may be added to the priority determination element together with the characteristic area information a to d.
[0022]
7 and 8 are diagrams illustrating a specific screen operation in step S6 of FIG. 6 in which the created characteristic area information a to d is superimposed on the system diagram. In FIG. 7, when a file ledger required for superposition is clicked, a menu of information necessary for earthquake damage prediction such as a position map, characteristic area information, system diagram, and area information of priority by region is displayed. In this example, when the a-fill area map, d-river area map, and g-soft ground area map are selected as the characteristic area information, and the facility plan view (system diagram) is selected, the characteristics are shown in the system diagram as shown in FIG. Area information a, d, and g are superimposed and displayed. Although it is difficult to identify in FIG. 8, the characteristic area information a, d, and g can be easily identified for each area by pink, blue, and yellow-green color contour lines.
[0023]
【The invention's effect】
According to this regional earthquake damage situation prediction search system, earthquake damage situation prediction can be easily executed in consideration of regional characteristics. Furthermore, characteristic area information directly related to earthquake damage can be overlaid, and each characteristic area information can be prioritized freely in consideration of regional characteristics, so a search system suitable for the area can be obtained. In addition, in the searched area, the predicted earthquake damage is displayed with priorities classified by area, so that measures can be taken according to the degree of danger. In addition, by superimposing the reference map information (system diagram) and the characteristic area information, it is possible to take measures for pipelines that take into account the risk of earthquake damage, and to provide a basis for accessing social infrastructure. The pipe number and the earthquake damage risk can be associated with each other.
[Brief description of the drawings]
FIG. 1 is a schematic system configuration diagram of a regional earthquake damage situation prediction search system according to the present invention.
FIG. 2 is a schematic explanatory diagram of a regional earthquake damage situation prediction search according to the present invention.
FIG. 3 is a computer screen showing a creation process of characteristic area information.
FIG. 4 is a screen that displays an outline of characteristic area information created on a computer screen.
FIG. 5 is an explanatory diagram showing overlapping of characteristic area information with priority weights and overlapping areas separated by priority order;
FIG. 6 is a flowchart showing a process of area earthquake damage situation prediction search.
FIG. 7 is a computer screen diagram illustrating a menu for overlay processing.
FIG. 8 is a computer screen diagram that displays the result of the overlay processing.
[Explanation of symbols]
1 Processing Device 2 Control Device 3 Storage Device 4 Input Device 5 Output Device

Claims (6)

地域特性を表す特性エリア情報を特性種類毎に記憶する特性エリア記憶手段と、
検索対象地域の管路、位置等を示す基準地図情報を記憶する地図情報記憶手段と、
検索対象地域の地域特性を表す少なくとも2以上の異なる種類の特性エリア情報を前記特性エリア記憶手段から呼び出して各特性エリア情報毎に識別可能に同一画面上に表示させ、前記検索対象地域の基準地図情報を前記地図情報記憶手段から呼び出して前記画面上に前記特性エリア情報に重ねて表示し、さらに各特性エリアの重なり数または各特性エリア情報の重み付けされた値の合計値毎に該当する重なり特性エリアを求め、該重なり特性エリアと基準地図情報を重ねて表示する、制御手段と、
前記制御手段により呼び出された特性エリア情報および基準地図情報を一画面上に表示するための表示手段と、
前記表示された情報を出力する手段と、
を備えた地域別地震被害状況予測検索システム。
Characteristic area storage means for storing characteristic area information representing regional characteristics for each characteristic type;
Map information storage means for storing reference map information indicating the pipeline, position, etc. of the search target area;
At least two or more different types of characteristic area information representing regional characteristics of the search target area are called from the characteristic area storage means and displayed on the same screen so that each characteristic area information can be identified, and the reference map of the search target area Information is called from the map information storage means and displayed over the characteristic area information on the screen, and the overlap characteristic corresponding to the total number of overlaps of the characteristic areas or the weighted values of the characteristic area information. A control means for obtaining an area and displaying the overlap characteristic area and the reference map information in an overlapping manner ;
Display means for displaying the characteristic area information and the reference map information called by the control means on one screen;
Means for outputting the displayed information;
An earthquake damage situation prediction search system for each region.
前記特性エリア情報は、スキャナにより読み取られた地域特性を表す特性図から、一定の特性条件を満たす区域の輪郭線として抽出される、請求項1に記載の地域別地震被害状況予測検索システム。  The regional earthquake damage situation prediction / retrieval system according to claim 1, wherein the characteristic area information is extracted as a contour line of an area satisfying a certain characteristic condition from a characteristic diagram representing a regional characteristic read by a scanner. 前記各特性エリア情報の地震被害危険度は均一であり、前記画面上に表示された各特性エリア情報の重なりの数に比例して地震被害危険度が高くなる、請求項1に記載の地域別地震被害状況予測検索システム。  The earthquake damage risk level of each characteristic area information is uniform, and the earthquake damage risk level increases in proportion to the number of overlaps of each characteristic area information displayed on the screen. Earthquake damage situation prediction search system. 前記各特性エリア情報には地震被害危険度の優先順位が重み付けされ、前記画面上に表示された各特性エリア情報の重み付けされた値の合計値に比例してエリアの地震被害危険度が高くなる、請求項1に記載の地域別地震被害状況予測検索システム。  Each characteristic area information is weighted with the priority of earthquake damage risk, and the earthquake damage risk of the area increases in proportion to the total of the weighted values of each characteristic area information displayed on the screen. The regional earthquake damage situation prediction search system according to claim 1. 前記各特性エリア情報は色分け表示される、請求項1から4のいずれかに記載の地域別地震被害状況予測検索システム。The regional earthquake damage situation prediction search system according to any one of claims 1 to 4, wherein each of the characteristic area information is displayed in different colors. 請求項1から5のいずれか記載の地域別地震被害状況予測検索システムをコンピュータにおいて実行するプログラム。  A program for executing, on a computer, the regional earthquake damage situation prediction search system according to any one of claims 1 to 5.
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