Speed doesn't kill

[Martin Cassini]

It's speed in the wrong hands that kills, or inappropriate speed - the very speed we get at priority and signal-controlled junctions. For all the negative press about "speeding", you’d think exceeding the limit must be a major factor in "accidents". In fact, the DfT attributes only 5% of accidents to exceeding the limit. See P.7 of this document, under the heading "Injudicious actions".