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Questions tagged [parallel-runways]

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

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Why is there no numbering system for more than three parallel runways?

If an airport has three parallel runways - a good example being Schiphol (EHAM/AMS) - the parallels are usually labeled "left", "center", and "right", and in case of Schiphol they are 18/36 L/C/R. ...
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3answers
958 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 ...
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1answer
376 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?
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1answer
263 views

How is separation managed when there are only two parallel runways in a very busy airport?

In the world's busiest airports, how is separation managed between departures and arrivals when there are only two parallel runways like in London Heathrow. What is the minimum safe separation?
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2answers
395 views

Why would the runway separation for parallel triple simultaneous precision approaches be dependent on airport elevation?

Based on FAA advisory circular AC 150/5300-13A, Airport Design, when operating triple simultaneous precision instrument approaches the parallel runway separation could be reduced from 5000 feet to ...
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3answers
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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?
18
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2answers
7k 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 ...
20
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3answers
2k 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
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2answers
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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 ...
18
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4answers
2k 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 ...