A Texas toll road operator has turned to the sky for solutions to a very down-to-earth problem: roadway maintenance.
The key to the approach is interferometric synthetic aperture radar (InSAR), which creates high-density measurements by using radar signals from Earth-orbiting satellites. InSAR imagery permits the monitoring of data representing a wide area at all times of day or night, in any weather conditions.
See https://www.enr.com/articles/54102-texas-toll-road-tries-satellite-sensing-for-maintenance