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- Xref: sparky sci.space:18942 sci.aeronautics:2691
- Newsgroups: sci.space,sci.aeronautics
- Path: sparky!uunet!blaze.cs.jhu.edu!jyusenkyou!arromdee
- From: arromdee@jyusenkyou.cs.jhu.edu (Ken Arromdee)
- Subject: Re: Subjective Safety Measure(Re: man-rating)
- Message-ID: <1993Jan7.204434.16621@blaze.cs.jhu.edu>
- Followup-To: sci.space,sci.aeronautics
- Sender: news@blaze.cs.jhu.edu (Usenet news system)
- Organization: Johns Hopkins University CS Dept.
- References: <1993Jan7.152456.25477@mksol.dseg.ti.com> <1993Jan7.181829.13714@cs.ucf.edu>
- Date: Thu, 7 Jan 1993 20:44:34 GMT
- Lines: 24
-
- In article <1993Jan7.181829.13714@cs.ucf.edu> clarke@acme.ucf.edu (Thomas Clarke) writes:
- >The rating of transportation system safety by fatalities per
- >passenger mile always struck me as bogus. Subjectively, what
- >matters is the probability of exit. That is if I climb in and
- >close the door, what are my chances of opening the door and
- >climbing out. By this measure the STS is only about 1 in 50,
- >although it probably isn't as dangerous as, say, a fighter in combat.
-
- In that case, the probability of exit can be made as low as you want, for an
- automobile, by stopping along the way. (The risk of dying on the trip stays
- the same, of course. You just exit more times.)
-
- Unless you mean "for a given length trip, the probability of getting in the
- vehicle at the start and coming out at the end, no matter how many stops you
- make along the way". But _this_ measure is of course identical to safety-as-
- measured-by-passenger-mile....
- --
- "On the first day after Christmas my truelove served to me... Leftover Turkey!
- On the second day after Christmas my truelove served to me... Turkey Casserole
- that she made from Leftover Turkey.
- [days 3-4 deleted] ... Flaming Turkey Wings! ...
- -- Pizza Hut commercial (and M*tlu/A*gic bait)
-
- Ken Arromdee (arromdee@jyusenkyou.cs.jhu.edu, arromdee@jhunix.hcf.jhu.edu)
-