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8 November 2022 by Michael Sharpe
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.