Wiz mentioned -
The most dangerous part of your trip will continue to be the drive to the airport.
Hmmm - seems unlikely for this type of flying.
Searching the internet for random sources brings up:-
http://www.pprune.org/archive/index.php/t-331176.html
Presenting a paper at the Royal Aeronautical Society’s Maritime Operations of Rotorcraft conference on Wednesday, Stevens referred to air safety performance figures that put offshore transport in third place with 4.5 fatal per one million flying hours compared to 2.0 for commuter airlines and 0.6 for average commercial airlines.
Death rate: the number of road deaths per billion vehicle kilometres
1 fatality per 7 or 8 per billion vehicle kilometers for the UK.
So rounding the numbers slightly for arithmetic convenience, it seems that we would need about 2000km driving per hour flying.
8,000 / 4 (all millions).
7000 / 4.5 gives about 1,000 miles.
Of course quite a few offshore workers will indeed travel that far
but I think the average will be significantly less.
Luckily, driving a shorter distance to the airport does not
make the flight more (or less) hazardous
This is clearly not a rigorous analysis and the road numbers will be affected by multiple vehicle occupancy for one thing.