Using 3D mapping to support emergency planning
Ordnance Survey’s (OS) 3D mapping has helped support disaster preparedness and emergency response efforts across the country.
Issue
During emergency and disaster planning, traditional 2D plans of a site struggle to accurately represent precise, spatial geographies of an area. This can prevent responders effectively planning for potential disaster scenarios and can offer limited information for emergency response plans.
Approach
To create 3D visualisations of an area, OS uses drones to survey a site and capture aerial imagery. This is then used to create an up-to-date 3D model, using OS software which creates an orthomosaic – a highly detailed, geometrically corrected aerial map created by stitching together hundreds of overlapping photographs.
Impact
Blackpool Pleasure Beach, one of the UK’s most popular attractions, is an often-challenging environment for responders, due to the sheer number of visitors. With a 3D model of the site, local authorities can now develop efficient emergency and disaster response plans, using more accurate data.
In 2024, Devon and Cornwall Police used the tool to support a major evacuation in Plymouth following a WW2 bomb discovery, affecting 10,000 people. Responders mapped a 3D area of evacuation by reviewing areas of potential impact. This supported a quick, effective evacuation and safe detonation of the bomb.
In addition, this modelling supported the Isle of Wight Council following a major landslide. Using a 3D mapping model, local authorities were able to analyse future impacts on property, infrastructure, and the natural environment to plan a safe and efficient response.
Organisation: Ordnance Survey.