Why are taxi-ways parallel to runways?
Why are taxi-ways parallel to runways?
Any airport designers in the house?
I was reading this BBC article and this Pprune thread and remembered that Harrison Ford made a similar mistake. In both instances the taxi-way was parallel to the runway. I believe that's normal practice. Why is this? Would it not be safer for taxi-ways to be at an angle to the main runways?
I was reading this BBC article and this Pprune thread and remembered that Harrison Ford made a similar mistake. In both instances the taxi-way was parallel to the runway. I believe that's normal practice. Why is this? Would it not be safer for taxi-ways to be at an angle to the main runways?
Why are taxi-ways parallel to runways?
Er, to allow aircraft to get between the start/end of their takeoff/landing roll and the terminal ?
The alternative would be to have aircraft backtracking on a live runway.
Which do you think would be a) safer and b) more efficient ?
The alternative would be to have aircraft backtracking on a live runway.
Which do you think would be a) safer and b) more efficient ?
Why would you have backtracking? Either go to the end and turn round
or have the taxi-ways and the runways form a triangle.
If you look at some Spanish airports, you'll see the parallel taxiways have runway markings so that can be used as 'emergency' runways if the main one is blocked.
The same was true of some 'NATO' runways in Germany eg Bruggen, where although not marked as a runway, the northern taxiway was designated as the emergency runway.
The same was true of some 'NATO' runways in Germany eg Bruggen, where although not marked as a runway, the northern taxiway was designated as the emergency runway.
Any airport designers in the house?
I was reading this BBC article and this Pprune thread and remembered that Harrison Ford made a similar mistake. In both instances the taxi-way was parallel to the runway. I believe that's normal practice. Why is this? Would it not be safer for taxi-ways to be at an angle to the main runways?
I was reading this BBC article and this Pprune thread and remembered that Harrison Ford made a similar mistake. In both instances the taxi-way was parallel to the runway. I believe that's normal practice. Why is this? Would it not be safer for taxi-ways to be at an angle to the main runways?
If taxiways parallel to runways are inherently dangerous, then it follows that runways parallel to other runways must be dangerous too.
That rules out a sizeable proportion of the world's airports.
That rules out a sizeable proportion of the world's airports.
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For reasons of space, I suppose. Taxying aircraft need to be kept a certain distance from an active runway, while if the taxiway is too far from the runway, this results in too much 'dead space' on the airfield. That 'sweet spot' (neither too close nor too far from the runway) is the same distance from the runway for its entire length, therefore the taxiway runs parallel to it.
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Despite looking so tempting I don't think many have tried to land on the A4, A5 or A9. The locals know the place quite well and the visitors normally take the easy way out by doing an ILS. The nearest you can get to a side-step is circling to the Kaagbaan off an approach to the Buitenveldertbaan. Taking off though is another matter. And believe it or not, the jury are now re-reviewing the data on that one.
Why do pilots try and land on things other than runways? Because they think the thing in front of them is a runway. The human brain rarely sets out to prove a think wrong but instead assembles information to prove something is correct. It's very similar to landing at St Athan instead of Cardiff. Solutions? There are many. Companies who have trainers who are scared of flying often prohibit all visual approaches. They might also insist on autolands whenever possible. Their passengers' problem then comes when the inevitable automation failure (due finger trouble and/or system failure) occurs and the monkeys at the front now have to fly without help from the aircraft.
The best is to encourage pilots to fly manually and make them look out of the bloody window. Allow free go-arounds (no paperwork) and have a proper pilot support network that encourages them to learn from each other. Beating people with a safety stick is very unsafe in the long run.
PM
Why do pilots try and land on things other than runways? Because they think the thing in front of them is a runway. The human brain rarely sets out to prove a think wrong but instead assembles information to prove something is correct. It's very similar to landing at St Athan instead of Cardiff. Solutions? There are many. Companies who have trainers who are scared of flying often prohibit all visual approaches. They might also insist on autolands whenever possible. Their passengers' problem then comes when the inevitable automation failure (due finger trouble and/or system failure) occurs and the monkeys at the front now have to fly without help from the aircraft.
The best is to encourage pilots to fly manually and make them look out of the bloody window. Allow free go-arounds (no paperwork) and have a proper pilot support network that encourages them to learn from each other. Beating people with a safety stick is very unsafe in the long run.
PM