SCARM - Simple Computer Aided Railway Modeller
Skycatch - Commercial drone data solutions for modern businesses.
TrainCad - Freeware Microsoft Windows program for designing model railroad layouts using standard tracks.
Pix4Dmapper - Photogrammetry software for professional drone-based mapping, purely from images.
WinTrack - Track planing software
Regard3D - Regard3D is a free, multiplatform, open-source structure-from-motion application.