Open-source web-based tool for area accessibility assessment in the context of disaster management – based on satellite data and geovisualization.
The tool gives an overview of the accessibility of the settlements in the Area of Interest in Colombia using a routing API and remote sensing data.
Moreover, the repository includes a set of snippets and examples, including routing experiments combining a routing API and remote sensing data.
The Accessibility Interface is located in app-access.
The interface visualizes for each settlement:
- Accessibility by road (vehicle)
- Accessibility by path (walk)
Overview of the accessibility of each settlement in the area:
Reachability of a settlement by road with time isolines:
If a settlement is not directly accessible by road:
- Provide accessibility data to the nearest road:
- Distance
- Elevation profile
- Passable areas (%, polygons)
- Walkable areas (%, polygons)
- Provide helicopter landing areas (within a given distance from the settlement)
Data to the settlement's nearest road:
Potential helicopter landing sites around a settlement:
Summary of the remote sensing data-based routing concept:
This is the client part of a modular architecture. In order to access the satellite data you'll need to install the following packages:
Further information of the project can be found in the following research articles and documentation:
- Project Documentation
- Visualization and Interaction with Multiple Devices. A Case Study on Reachability of Remote Areas for Emergency Management – Jordi Tost & Frank Heidmann, i-com Journal of Interactive Media
The remote sensing data is based on the Tandem-X WorldDEM 10-m resolution digital elevation model (DEM) with complete coverage for the area of interest.