What are the advantages of parallel runways?

The main objective of implementing simultaneous operations on parallel or near-parallel runways is to increase runway capacity and aerodrome flexibility. The largest increase in overall capacity often includes the use of independent approaches to parallel or near-parallel runways.



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Aircraft on parallel runways both go in the same direction, so that a departing plane and arriving plane would both be flying in the same direction. There would be no head-on collision.

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The basic configurations are (1) single runways, (2) parallel runways, (3) intersecting runways, and (4) open-V runways.

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The basic configurations are (1) single runways, (2) parallel runways, (3) intersecting runways, and (4) open-V runways.

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A runway should be marked according to its usage. The three classifications of runways are Visual Runways, Nonprecision Instrument Runways, and Precision Instrument Runways.

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Closely-spaced parallel runways may affect the pilots' situational awareness or lead to their distraction or confusion. A potential problem with close parallel runway spacing is the possibility that an aircraft may make an approach to the wrong runway.

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Trivia: There are only 3 airports outside the US with 4 parallel runways: LFPG (Paris Charles de Gaulle Airport), LFTM (Istanbul Airport) and ZSPD (Shanghai Pudong International Airport).

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Objective. The main objective of implementing simultaneous operations on parallel or near-parallel runways is to increase runway capacity and aerodrome flexibility. The largest increase in overall capacity often includes the use of independent approaches to parallel or near-parallel runways.

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In the United States, the Federal Aviation Administration dictates that airports must have at least 3,000 feet (910 m) between runways, though it can grant special permission to conduct parallel approaches with less separation if deemed necessary.

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Same Runway Separation: One Arrival, One Departure If the other aircraft is departing and has crossed the runway departure threshold, separation is guaranteed and another aircraft may land. Again, however, exceptions apply: 1) 3,000 Feet of Separation: Category I aircraft landing behind Category I or II.

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The letters, differentiate between left (L), right (R), or center (C) parallel runways, as applicable: For two parallel runways “L” “R.” For three parallel runways “L” “C” “R.”

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