Questions tagged [parallel-runways]

Questions about runways at the same airport that are parallel to each other.

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20
votes
3answers
27k views

What is the minimum distance allowed between two parallel runways?

Is there an international regulation for this matter or does it differ from one country to another?
19
votes
4answers
3k views

Why is one of two parallel runways sometimes closed in foggy weather?

A few times, when flying into SFO, me and my fellow passengers were informed that due to foggy weather one of two parallel runways there is closed, causing delays. So, a few questions: Why can only ...
3
votes
3answers
2k views

Why do simultaneous-ops parallel runways need to be so far apart?

In the answers to this question about Denver's widely-scattered pinwheel of runways and this question about Schiphol's runway out in the middle of nowhere, it's mentioned that parallel runways are ...
20
votes
2answers
9k views

What are the most efficient layouts of multiple runways?

Many airports have more than one runway. How should runways be built in order to achieve maximum usage and minimum delays? Many major airports have most, if not all, parallel runways. Examples ...
62
votes
1answer
9k views

Why are Gatwick's runways too close together?

Gatwick Airport has two runways (08L/26R and 08R/26L), but they are only 200 metres apart - too close (by just ten metres) to allow simultaneous operations on both runways. As a result, usually only ...
21
votes
3answers
3k views

How are go-arounds safe with close parallel runways?

Some airports operate simultaneous take off and landing on parallel but close runways. By close, I mean like the pairs of runways at LAX. What if a landing aircraft makes a go-around at the same time ...
11
votes
2answers
2k views

In parallel runway ops, is it better to dedicate a single runway to landings, or is it best to have a mix?

Assuming taxiing is not a consideration, in an airport with two parallel runways does the airport gain capacity by: having a single runway dedicated for landings and the other for take-offs, or is it ...
4
votes
1answer
482 views

How does the capacity of 2 parallel runways compare to single runway?

Under IFR, what is the capacity of 2 near parallel runways and how does it compare to mixed mode single runway?
8
votes
1answer
2k views

How many US airports have 4 or more parallel runways?

Which airports in the US have four or more parallel runways? How many are planning additions in the next 5 years? A few years back, 10 years, Charlotte opened their 3rd parallel runway and it was ...