Ralf Birken tells us at the Esri User Conference how Streetscan, www.streetscan.com, is saving our crumbling infrastructure at the speed of traffic. innovative multi-modal multi-sensor systems integrate high speed acoustic, radar, and video measurements to determine conditions of road surface; potholes and manhole covers; as well as rebar and bridge conditions. Watch more videos at www.StartupShowSD.com.

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