[SystemSafety] Small but useful Detail on Road Stopping Distances

[Peter Bernard Ladkin]

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On 2015-07-29 15:31 , Mike Ellims wrote:
> A 9m reaction distance at 30 kph is around a 1.1 second reaction time which looking at the
> literature is faster than "normal" reaction times to events such as brake lights.

The traffic law in Germany stipulates a reaction time of 1 second. It may seem odd to stipulate
something like this, but there have to be engineering values used for calculating whether a
particular traffic instruction/information measure is appropriate for speeds and locations.

In commercial aviation, a reaction time of 1.5-2 seconds is generally seen/used.

PBL

Prof. Peter Bernard Ladkin, Faculty of Technology, University of Bielefeld, 33594 Bielefeld, Germany
Je suis Charlie
Tel+msg +49 (0)521 880 7319  www.rvs.uni-bielefeld.de




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