Indonesian Journal of Earth Sciences
Vol. 6 No. 1 (2026): January-June

Integration of Geographic Information Systems in Determining Flood Risk Evacuation Routes in Medan City

Muhammad Farouq Ghazali Matondang (Department of Geography Education, Faculty of Social Science, Universitas Negeri Medan, Medan, Indonesia)
Meilinda Suriani Harefa (Department of Geography Education, Faculty of Social Science, Universitas Negeri Medan, Medan, Indonesia)
Rohani (Department of Geography Education, Faculty of Social Science, Universitas Negeri Medan, Medan, Indonesia)
Eni Yuniastuti (Department of Geography Information System, Faculty of Social Science, universitas Negeri Medan, Medan, Indonesia)
Mulhady Putra (Department of Geography Education, Faculty of Social Science, Universitas Negeri Medan, Medan, Indonesia)
Rozi Mahmuda (Department of Geography Education, Faculty of Social Science, Universitas Negeri Medan, Medan, Indonesia)
Tengku Abdillah Azis (Department of Geography Education, Faculty of Social Science, Universitas Negeri Medan, Medan, Indonesia)



Article Info

Publish Date
29 Jun 2026

Abstract

This study aims to map flood risk evacuation routes in Medan City using the Network Analysis method based on Geographic Information Systems (GIS). Medan City is a flood-prone area due to rapid urbanization, inadequate drainage systems, and land use changes. The data used include the 2024 flood risk map, road network, and evacuation shelter locations. The evacuation route analysis was conducted using ArcGIS 10.8 software with the Network Analyst feature to determine optimal evacuation routes that avoid flood-prone areas and facilitate evacuation to safe locations. The results show ten main evacuation routes covering various districts in Medan City. These routes were designed based on accurate spatial data considering road conditions and flood risk zones. This evacuation route mapping is expected to serve as an important reference for local government and related agencies in planning flood disaster mitigation strategies and enhancing community safety. The GIS and Network Analysis approach proves effective as a planning tool for disaster evacuation by comprehensively considering geographical variables and transportation networks.

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Journal Info

Abbrev

injoes

Publisher

Subject

Agriculture, Biological Sciences & Forestry Earth & Planetary Sciences Environmental Science

Description

Indonesian Journal of Earth Sciences is an open-access journal that publishes rigorously peer-reviewed research dedicated to our ...