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qf2220
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Joined: Fri Aug 16, 2013 9:16 pm

Relative airline safety to land modes

Tue May 09, 2017 12:26 am

We all know that airlines are generally regarded as (one of) the safest form of transport, with data to back that up showing that by various measures, it has a low rate of fatalities. But we do know that some airlines are safer than others.

However, is there somewhere a list of these ratings per airline that would allow for a stratified comparison. That is, if you could split the group of airlines into say top, middle and bottom of the group, how do the airlines at the bottom of the list compare to land transport (cars, buses, trains)? Are the airlines with the worst safety ratings (by measures) still safer than a car/bus/train?

Thanks.
 
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caoimhin
Posts: 474
Joined: Thu Oct 23, 2014 12:30 am

Re: Relative airline safety to land modes

Tue May 09, 2017 3:48 am

Are you asking for a statistical model that will let you say X airline is as safe as a motorbike, while Y airline is as safe as a train?
 
ryan78
Posts: 402
Joined: Tue Mar 02, 2010 1:29 am

Re: Relative airline safety to land modes

Tue May 09, 2017 9:46 am

qf2220 wrote:
However, is there somewhere a list of these ratings per airline that would allow for a stratified comparison. That is, if you could split the group of airlines into say top, middle and bottom of the group, how do the airlines at the bottom of the list compare to land transport (cars, buses, trains)? Are the airlines with the worst safety ratings (by measures) still safer than a car/bus/train?

Thanks.


Judging by your post count, you've obviously spent a fair amount of time on a.net which is why a question like this is a little confusing to me... Without a doubt even airlines with the worst safety records are still a lot safer then say a car, bus or train, at least based purely on statistics.

For example I just googled some stats for Canada. In 2014 there were, on average, 5.2 fatalities and 421.7 injuries on the road per 100,000 people. This includes all licensed and non licensed drivers ie the total population. Now say you are the most unsafe airline you can think of and you have only 1 737-800. On average that airplane will do 4 flights a day so 189x4=756 people per day or 275940 per year for just 1 airplane. In order to be worse then that statistic that one airplane in your fleet would have to kill 15 people and injure 1164 every year. Say you have 10 airplanes, you would have to have 1 airplane crash each year. I don't care who you are, or how much money you have, there will never be an airline in business that averages 1 fatal crash per year, not in this day and age.

In 2014, Train related incidents accounted for 54 fatalities and 46 injuries for 36 million people. Or 0.15 fatalities and 0.13 injuries per 100,000 people. Even with this stat that one airplane would would on average kill 0.41 people and injure 0.36 every year to break even. Now this number is a lot closer but when you scale this up to a fleet of many airplanes the numbers start to add up. And this is just a sample from one country with 36 million people, not the total population of 7 billion. Obviously there are outliers, airlines that operate in dangerous weather and terrain, Nepal comes to mind, but you can't deny the numbers...

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