There's more to life than not being dead ...

In safety statistics, analysts often use KSI (Killed or Seriously Injured) statistics.
Main reasons :

1. Numbers killed often are, thankfully, too low for any statistically-significant conclusions to be drawn until many years have passed.
2. Serious Injuries are usually about ten times more frequent, and often life-changing. So taking measures to reduce them is arguably just as important as reducing fatalities.
3. Many other factors affect whether a casualty dies :
   
   • Vehicle engineering - crumple zones, airbags, seat-belts, safety glass
   • Emergency service response, particularly Air Ambulances
   • Medical care in hospital

Further than that, there are many 'Quality of Life' issues that are worth considering.

• Perceived Safety
• Improved lifestyle
• Community well-being
• Stress and Mental Health

I remember a reading a book about skiing, that quoted a racing driver:

"To move is to risk death : not to move is to be dead already" [citation needed] 

I first started thinking about this after reading a report by Eric Bridgstock, aka 'Independent Road Safety Research', campaigning against reducing 30mph speed limits to 20mph.

This still puzzles me:

"Who in their right mind would centre their safety policy on “hitting people at slower speeds kills fewer of them”? I have seen numerous examples of this type of mantra and they are all repugnant."

I don't think he means we should consider 'Quality of Life' issues in addition to fatalities (or even instead), because he goes on to say

• "So why did these schemes fail? Vulnerable road users are encouraged to feel safer – a natural instinct when traffic is slower."
• Roads “feeling safe” lead to less care/attention by pedestrians/cyclists
• “Quality of Life” arguments are specious when offset by increased casualties

As far as I can tell, he instead is aiming for collision elimination by traffic flow engineering and improved visibility. And perfect drivers ?

See also

• Near Misses - [ Motorism - a failure of democracy ! ]
• A Different Kind of Sanity - [ Motorism - a failure of democracy ! ]
• Investigating the rates and impacts of near misses and related incidents among UK cyclists - [ Science Direct ]
• Bicycling campaigns promoting health versus campaigns promoting safety: A randomized controlled online study of ‘dangerization - [ Science Direct ]
• Road safety versus saving lives - [ movementsci ]
• Are cars the new tobacco? - [ Journal of Public Health ] 
• How are cyclists most likely to die? - [ The Guardian ]
• 'Cycling death worth it' - [ Warning - Keith Peat! ]
• Trip to the therapist drives out demons for stressed out bikers - [ London Evening Standard ]