Corridor mapping is a specialised application of remote sensing and geospatial technology that focuses on surveying and mapping linear features such as rivers, coastlines, roads, highways, railways, power lines, pipelines, and other infrastructure that stretch across the landscape. In general, corridor mapping demands greater accuracy and detail compared to wide area captures to meet engineering design specifications. Key components and techniques involved in corridor mapping include:
Aerial Photography and Lidar: These data are captured simultaneously along the entire length of the corridor to produce visually stunning digital-twins. These data capture the terrain, the built and natural assets within the corridor, and the potential hazards putting those assets at risk.
High-Precision Georeferencing: The collected spatial data is accurately georeferenced against highly sensitive onboard GNSS and IMU instruments. These data are then reference to a geographic coordinate system.
Feature Extraction: Specialised software is used to identify and extract the linear feature from the collected data. This often involves identifying road edges, railway tracks, powerlines, or the centreline of a pipeline, for example.
Topographic Mapping: In addition to the linear feature, topographic information is generated to depict the terrain around the corridor. This includes elevation data and the mapping of natural and man-made features within the corridor’s influence.
Data Integration: The linear feature data and the topographic data are integrated to create a comprehensive corridor map, or digital twin. This digital twin can be used for design, maintenance, and monitoring purposes.
Hazard Analysis: Once the entire corridor is mapped and represented geospatially, further desktop analysis can take place utilising models and artificial intelligence tools to identify risks to your assets. For example, this could involve vegetation encroachment measurements, flood modelling, or identifying landslide risks.
Corridor Mapping Applications
- Transportation Planning and Design
- Infrastructure Management
- Asset Management
- Urban Planning
- Environmental Impact Assessment
- Surveying and Mapping
- Emergency Management
- Power Line Inspection and Management
- Land Use Planning
- Wildlife Corridor Analysis
- Construction and Engineering
Why use Corridor Mapping?
Precise Route Planning
Swift Data Collection
Detailed 3D Models
Reduced Risks and Costs
Environmental Impact Assessment
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