A study on the estimation method of indirect benefit of flood mitigation river improvement project using spatial information web crawling techniques

Kidoo Park; Junhwa Lee; Younghun Jung

doi:10.3741/JKWRA.2025.58.10.939

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2025 Vol.58, Issue 10 Preview Page Next Page

Special Issue: 지능형 도시홍수 예측

A study on the estimation method of indirect benefit of flood mitigation river improvement project using spatial information web crawling techniques 공간정보 웹 크롤링 기법을 활용한 홍수저감 하천정비사업의 간접편익 산정방법에 관한 연구

31 October 2025. pp. 939-951

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Abstract

River planning in Korea has primarily focused on flood control and disaster prevention, with water resources economic evaluations that have focused on estimating the direct benefits of flood damage reduction through structural measures. However, as national income and economic growth have improved, the importance of waterfront amenity and recreational functions has been steadily increasing. From a real estate valuation perspective, the presence of waterfront landscapes and scenic rights has also been recognized as the key factors enhancing property values. In this study, a methodology was developed to accurately extract commercial buildings by crawling and acquiring public spatial data from V-World Digital Twin Korea and restaurant POI (Point Of Interest) data from Kakao Map using OpenAPI, followed by applying a centroid-nearest mapping algorithm. Furthermore, moving beyond the conventional direct benefit assessments of flood damage reduction, two independent variables-gross floor area and waterfront frontage length of commercial buildings-were selected to effectively estimate commercial profits attributable to scenic rights. Finally, the hedonic implicit price model based on actual sales revenues of commercial buildings was constructed, enabling the quantitative estimation of indirect benefits derived from the enhancement of scenic rights in riverfront recreational areas.

Keywords

Scenic rights

OpenAPI

POI

Web crawling

Centroid-nearest mapping algorithm

Indirect benefits

Commercial profit

Hedonic implicit price model

Gross floor area

Waterfront frontage length

국내 하천계획은 최근까지도 주로 홍수 방어와 재해 예방에 중점을 두어 치수시설을 통한 홍수피해 저감의 직접편익 산정에만 한정된 수자원경제성 평가를 수행해 왔다. 그러나 국민 소득과 경제 성장이 향상됨에 따라 하천의 친수 기능과 레크리에이션 기능의 중요성이 점차 커지고 있으며, 부동산 가치 평가측면에서도 수변경관 및 조망권의 확보가 부동산 가치를 높이는 핵심 요인으로 인식되고 있다. 본 연구에서는 OpenAPI를 활용하여 V-World 디지털트윈국토의 공공 공간정보와 카카오맵의 맛집 POI (Point Of Interest) 데이터를 크롤링하여 취득한 후, 중심근접(Centroid- nearest) 매핑 알고리즘을 적용하여 상업용 건물을 정확히 추출할 수 있는 기법을 개발하였다. 또한 기존의 홍수피해 저감에 따른 직접편익 산정방식을 넘어 상업용 건물의 연면적과 수변 전면 길이를 2개의 독립변수로 선택하여 조망권 확보에 따른 영업이익을 효과적으로 추정했다. 마지막으로 본 연구의 최종 목표인 상업용 건물의 실제 매출액을 기반으로 한 헤도닉 가정가격모형을 구축함으로써 하천유원지 내 조망권 확보에 따른 간접편익을 정량적으로 산정할 수 있었다.

키워드

조망권

OpenAPI

POI

웹 크롤링

중심근접 매핑 알고리즘

간접편익

영업이익

헤도닉 가정가격모형

건물 연면적

건물의 수변 전면길이

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Information

Publisher :KOREA WATER RESOURECES ASSOCIATION
Publisher(Ko) :한국수자원학회
Journal Title :Journal of Korea Water Resources Association
Journal Title(Ko) :한국수자원학회 논문집
Volume : 58
No :10
Pages :939-951
Received Date : 2025-08-05
Revised Date : 2025-09-23
Accepted Date : 2025-09-29
DOI :https://doi.org/10.3741/JKWRA.2025.58.10.939

Journal of Korea Water Resources Association ISSN:2799-8746(Print) 2799-8754(Online) 한국수자원학회 논문집

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