LIDAR point clouds are the bedrock of modern surveying and cartography (and thence civil engineering in general). https://www.usgs.gov/faqs/what-lidar-data-and

LIDAR point clouds are the bedrock of modern surveying and cartography (and thence civil engineering in general). https://www.usgs.gov/faqs/what-lidar-data-and-where-can-i-download-it https://www.usgs.gov/faqs/what-lidar-data-and-where-can-i-do... https://www.fhwa.dot.gov/construction/3d/survey.cfm https://www.fhwa.dot.gov/construction/3d/survey.cfm