Maxi101 asks if the '90 minute' advice of maximum travelling time is to the car park or to the place of report.
If you ask the CAA - as I have - they will tell you it's to the place of report. Their (logical) reasoning is that it's the entire journey that makes you tired/stressed. So driving past the airport to the staff car park, waiting for the bus then travelling back to the airport ALL counts as travelling time. The CAA's words, not mine.
But ask your company - once the corporate head is removed from the sand - and you'll get a different answer. Management don't have to wait in remote staff car parks, you see.
When these set of rules/guidelines were first incorporated in ops manuals, it was probably a reasonable compromise. Our (shorthaul) working day was easier, traffic volumes were a fraction of today's nightmare and minimum rest rostering was still in its infancy.
It can only be a matter of time before the realities of our lifestyle are tested before a court, following an incident where fatigue is alleged.
Legislation alone cannot be the answer and the powers that be will of course rely on the nebulous interpretation of the words 'regularly' and 'should'.