ALDOT Uses SimActive Software to Support Tornado Recovery

Montreal, Canada, November 14th., 2023 – SimActive Inc., a world-leading developer of photogrammetry software, announces the use of Correlator3D by the Alabama Department of Transportation (ALDOT) to process drone imagery for damage assessment.


Earlier this year, a powerful tornado ripped through the southwest portion of the city of Selma in Alabama.  ALDOT quickly collected more than 18,000 images of the area and within 24 hours, processed the data using SimActive software and delivered digital surface models and orthomosaics.

“Time is critical when responding to disasters like this one”, said JD D’Arville, UAS Program Administrator at ALDOT. “SimActive’s Correlator3D allows us to process huge datasets rapidly and distribute them to the many groups that need the data.”


The Alabama Department of Transportation (ALDOT) is a state agency with the primary responsibility of statewide transportation through all modes of travel. ALDOT employs approximately 4,000 people and utilizes federal, state, and local funds. Its UAS department was formed in 2016 and includes 7 drone pilots centrally located within the State. Operating primarily fixed-wing drones, the team is on track to complete over 4,300 missions this year.  For more information, visit

About SimActive

SimActive is the developer of Correlator3D™ software, a patented end-to-end photogrammetry solution for the generation of high-quality geospatial data from satellite and aerial imagery, including drones. Correlator3D™ performs aerial triangulation (AT) and produces dense digital surface models (DSM), digital terrain models (DTM), point clouds, orthomosaics, 3D models and vectorized 3D features. Powered by GPU technology and multi-core CPUs, Correlator3D™ ensures matchless processing speed to support rapid production of large datasets. SimActive has been selling Correlator3D™ to leading mapping firms and government organizations around the world, offering cutting-edge photogrammetry software backed by exceptional customer support. For more information, visit