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@pdlouche
"Reaction times vary greatly with situation and from person to person between about 0.7 to 3 seconds (sec or s) or more. Some accident reconstruction specialists use 1.5 seconds. A controlled study in 2000 (IEA2000_ABS51.pdf) found average driver reaction brake time to be 2.3 seconds."
Top result on the big 'G'. http://copradar.com/redlight/factors/
I would like to see that the bike test quoted in the case was conducted without a known point to stop. Like a car test emergency stop, if they know they need to stop during the test then the exercise is biased. I doubt the results would be as conclusive as the investigator makes out.
Were conditions such as road, weather, weight considered, was the wind velocity accurate to accomodate balance for the rider?
The death of anyone is incredibly sad, and this was rare and tragic, and the kid failed at composure following the event. But, with a cynical perspective of the public view and knowledge of cycling, this case cannot end well for anyone.