Comments by "Philip Rayment" (@PJRayment) on "Drones with ‘machine learning’ could be used to understand how cracks form in roads" video.

  1. I had about $1200 damage to my car recently, thanks to a pothole. And as Bolt said, in the right circumstances, some of these potholes could be lethal.
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  2. When railway lines become unsafe, until they are fixed the speed limit is lowered to a safe level. A pothole I hit recently had warning signs "Rough Road", but that's fairly meaningless, whereas a temporary speed limit of, say 20kph would have been a better option.
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