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Questions tagged [airport-design]

Questions about the planning and design of airports: both the manoeuvring area itself, and the services and passenger facilities.

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3 votes
1 answer
117 views

Who determines the minimum area needed for a sky diving dropzone?

Who or what determines the minimum area required for a sky diving dropzone at an airport?
11 votes
2 answers
2k views

What is the purpose of this loop in a taxiway?

This image is of Mariscal Sucre International Airport near Quito, Ecuador. (Official site / in English) What is the purpose of the loop in the taxiway plainly visible in this image? From Google ...
1 vote
2 answers
159 views

Is there a minimum distance a building must be from a taxiway or runway?

Is there a minimum distance a building on the actual airport property must be from a taxiway or a runway? Two examples of a building would be the terminal and concourses or any hangers for example.
5 votes
1 answer
195 views

What should I do to prevent confusion for pilots due to the long distance between edge units on taxiways next to rapid exit taxiways?

We are at Hurghada Int’l Airport (HEGN) and we have a problem in three rapid exit taxiways named V5, V6 and V7 with taxiway V: Moving to V5 for example, if you measure the distance between the first ...
8 votes
4 answers
3k views

What happens when the runway is unusable at an isolated aerodrome?

What happens when you fly to isolated aerodrome in turbine engine aircraft without predetermined point procedure and just upon arrival for example an aircraft crashes on the runway and you can not ...
0 votes
4 answers
254 views

Unlike other sectors, why does aerospace have 'design approval ' phase?

Very basic question: Why do we need Design approval phase in aerospace? Shouldn't it be the product approval that matters? -> How does design ( 'How we achieve the requirements') matter? I was ...
5 votes
2 answers
1k views

Why is there such a long displaced threshold on 22R at JFK/KJFK?

This video seems to raise a whole bunch of questions, but here's one I have: Why such a long displaced landing threshold on 22R at JFK/KJFK? (Scroll down to the 4L/22R section for details.) ...
-1 votes
1 answer
178 views

Jeppesen airport codes for holding positions - catstops

what would be the meaning of the jeppesen catstop codes for holding positions(AM_TaxiwayHoldingPosition): {-32767, -32765, 2, 1} ? Seems that they are used completly different, for example on LTFM (...
1 vote
5 answers
955 views

Why don't short runways use (downhill) ramps for takeoff?

This is a followup on question: Why don't short runways use ramps for takeoff? There are multiple answers to that question that answer why an uphill ramp at the end of the runway does not make ...
13 votes
4 answers
10k views

Why do some airports have more than 2 runways, when LHR can get by with 2?

I was looking at aerial imagery of various airports and noticed how some have a large number of runways (4-6), while others have a small number. Specifically, I noticed that Heathrow (LHR) only has 2 ...
3 votes
1 answer
589 views

Under what circumstances are passengers boarded onto buses at gates A10 and A4 at Heathrow Terminal 5?

In Why doesn't Heathrow T5 have stand 504? it was suggested that gates A4 and A10 are so-called "bus-gates" where passengers board a bus to get to the aircraft. Under what circumstances ...
5 votes
2 answers
295 views

When and why was AGGH's runway 06/24 shortened?

AGGH has one runway, 06/24. When looking at an aerial photo of said runway, I noticed something interesting: (Image by Graeme Bartlett at Wikimedia Commons.) My interest was piqued by seeing what ...
25 votes
3 answers
21k views

Why does Schiphol Airport have such a long taxi?

I recently flew into Schiphol and experienced a very long taxi time (about 20 minutes) from landing to pulling into the pier at the terminal. Given that the flight was only 90 minutes from closing air ...
33 votes
4 answers
10k views

Why do passenger embark on the left side of an aircraft?

I speak of passenger aircraft that can be found on large airports. The left side is used by passengers (and the crew) to embark/disembark (see the position of jet bridges) and the other side to embark/...
0 votes
1 answer
315 views

Why is the runway at Ulyanovsk Vostochny Airport so long and wide?

According to Wikipedia, the runway at the Ulyanovsk Vostochny Airport is tied for longest in the world (at 5000 meters/16,000 feet), in addition to being the widest (at 105 meters/344 feet). It's not ...
3 votes
1 answer
284 views

How is a new airport certified or approved to operate by international organizations?

I just read the news of a new airport in construction in Mexico (Mexico City). They seem to be starting operations in a few months. In this case, researching a bit, it seems domestic and a Venezuelan ...
2 votes
2 answers
251 views

Is there a specific name for an airport gate at ground level?

At a two level airport most gates are located on the upper level with loading bridges or jetways. Is there a specific name for gates located on the lower level (ground) for like use of turbo prop ...
2 votes
1 answer
284 views

Taxiway alignment on scissor intersecting runways

I came across this announcement on the first flight on Dublin Airport's new runway and was struck by something in the photo I had not seen before. The traditionally parallel taxiway makes a dogleg at ...
3 votes
1 answer
194 views

Do private airports have to have the same runway and taxiway dimension and separation requirements as public airports?

I'm new to this site. I joined today after searching for hours to find answers to this question with no luck. I am a part of a group of pilots and aviation enthusiasts working on a new aviation ...
6 votes
1 answer
820 views

Why doesn't Heathrow T5 have stand 504?

On the North side of Terminal 5A are four stands, 501, 502, 503, and 505. Why is there no 504?
12 votes
1 answer
4k views

Why does KBOS have such a short runway?

Runway 15L/33R at Boston Logan is only 2500 ft, which is barely long enough for a Cessna, let alone an airliner. I’m wondering if anyone knows why this runway was built or what purpose it serves. I ...
16 votes
2 answers
3k views

How are light gun signals handled at remotely controlled airports?

In a comment @randomhead mentioned: Remote towers are already in use at several sites in multiple countries. Off the top of my head and without even googling, there's Leesburg airport in Virginia ...
15 votes
1 answer
2k views

Why was the second runway at Sea-Tac Airport built so close to the first?

The second runway (the eastern 16L/34R) was built 800ft. to the east of the original runway 16C. Almost immediately it was criticised as being unusable for simultaneous operations unless using VFR ...
65 votes
1 answer
12k 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 ...
8 votes
1 answer
842 views

Why are only two of the five water-facing runway ends at KBOS equipped with EMAS beds?

KBOS has eight major runway ends:1 04L, 04R, 09, 15R, 22L, 22R, 27, and 33L. As KBOS is primarily situated on (and occupies the vast majority of) a peninsula made by dumping lots of sand and dirt into ...
10 votes
1 answer
728 views

Are there specific surface requirements prior to an ILS Category 2 runway approach threshold to ensure the accuracy of the Radio Altimeter derived DH?

ILS Category 2 approaches use a Radio Altimeter (RA) derived DH (Decision Height). An RA measures the aircraft height directly above the surface immediately below the aircraft. Any sloping terrain, ...
2 votes
1 answer
487 views

Do the spaces between runways and taxiways need to be grass/scrubs?

I travel often for work and have often wondered why you don’t see more variation in the vegetation in between the runways and taxiways. It is almost always short grass (Or in desert areas scrub). It ...
7 votes
1 answer
775 views

Where is KBOS runway 15R's localiser array?

Of the eight major-runway directions at KBOS, five (4R, 15R, 22L, 27, and 33L) are equipped with ILS (ILS-III for 4R and 33L, ILS-I for the rest). Four of these (4R, 22L, 27, and 33L) have a ...
4 votes
1 answer
542 views

Do any subterranean runways exist for airplanes?

Are there any examples of runways that are under the cover of some terrain such as a runway built into the side of a mountain as a tunnel, perhaps with an entrance and an exit on both sides to ...
1 vote
0 answers
219 views

What would be a minimum ICAO Aerodrome Reference Code for C-130?

I was wondering, mostly of military planes are not mentioned by ICAO on its papers (for sure, it is dedicated to civil aviation), but it's common to see military cargo planes operating on Civil ...
4 votes
2 answers
1k views

Does the angled parking scheme of London City (LCY) increase the number of aircraft that can be parked in the small apron?

While going through some articles and videos, I chanced upon a video on LCY and was surprised to see that, unlike in Dortmund, LCY has aircraft parked diagonally. Does this increase the number of bays ...
0 votes
6 answers
799 views

Why don’t airports use jetways as an airlock to avoid having to repressurize the plane for every flight?

Seems like it could save money perhaps. Has this been considered in the past?
4 votes
1 answer
402 views

What is the difference between the red and black box identifiers on UK airport charts?

On UK airport charts like the one below for Manchester (EGCC), what is the difference between an identifier with white lettering on a red square and one with yellow lettering on a black square with a ...
29 votes
3 answers
11k views

Why is Heraklion airport a 'captains only' airport?

I was recently watching "EasyJet: Inside The Cockpit" and it said pilots need 4 shoulder stripes to land at Heraklion International Airport, “Nikos Kazantzakis” (IATA: HER, ICAO: LGIR), but it didn't ...
14 votes
1 answer
2k views

Are there any "captains-only" airports in the U.S.?

Some airports in the world only allow captains to take off or land the aircraft, due to airport design or environmental conditions (obstacles, high winds). Examples include: Funchal (Madeira, ...
13 votes
1 answer
800 views

Why is London City getting a virtual tower?

(Source) London City is not a remote-low-traffic airport. Staffing a remote airport is like having lighthouse keepers. That I understand. And yet the tower will be closed, and moved off-airport to ...
79 votes
4 answers
16k views

Why do control towers have tilted glass panels?

Almost all control towers I've seen have tilted glass panels: Amsterdam-Schiphol tower (EHAM), source. What is the reason behind this choice? How is the tilt angle determined?
3 votes
1 answer
527 views

What are these protuberances on the north edge of runway 10/28 at Mataveri?

The single runway (10/28) at Mataveri International Airport (IPC/SCIP) on Rapa Nui1 has (at least according to Google Maps) a few paved protuberances emanating from partway down its northern edge ...
3 votes
3 answers
559 views

Are there any airports with multi-level taxiways?

There are many airports where roads (and pedestrian walkways) are routed underneath taxiways, runways, etc. But are there any airports where airplane taxiways go under/over each other? I can't imagine ...
26 votes
1 answer
5k views

Why do some AFBs have planes parked at 45 degrees to others?

I'm assuming this is just a matter of available space but it seems you could get 4 across all aligned but maybe there is another reason. The image is from McGuire AFB but I've seen this on other AFBs.
0 votes
1 answer
147 views

How to estimate runway length for airport master planning?

I use the manufacturer aiport planning manuals. But they are incomplete (unless for Boeing). Airbus and Embraer for example, only present range X weight charts for MTOW. Is there a free (or affordable)...
14 votes
2 answers
5k views

Why are most helipads in São Paulo blue coated and identified by a "P"?

ICAO Annex 14, Vol II and FAA (AC 5390-2C) standards establishes 'H' and there is no mention to coating TLOF or FATO. Brazilian National Regulation (RBAC 155 - ANAC) does not provide any guideline for ...
28 votes
6 answers
6k views

Why do airports remove/realign runways?

When looking at Google Earth, I often find myself looking for airports. I often notice that no matter what size airport, over time many of them have abandoned old runways and built new runways in ...
2 votes
0 answers
394 views

Why do so few non-US runways have EMAS beds?

As occurrences of an aircraft running off the end of the runway and hitting things tend to leave both the aircraft and whatever it hits rather the worse for wear, much effort over the years has gone ...
-1 votes
3 answers
323 views

Why isn't there more green space on the apron? [closed]

I feel like it's a waste of concrete or asphalt. Can't they just leave some areas that don't get taxied on as grass? If taxiways are designed with green spaces in between them, why can't we see much ...
2 votes
2 answers
4k views

Why is ARP (Airfield Reference Point) needed?

An airport reference point is the centre point of an airport, located at the geometric centre of all the usable runways. The ARP is computed as a weighted average of the end of runway coordinates.
18 votes
1 answer
3k views

What are those structures at Taif Regional Airport in Saudi Arabia?

I was looking at airports in Saudi Arabia and noticed a strange one. At Taif Regional Airport near Mecca there are a bunch of taxiways all seemingly randomly intersecting at different angles, each ...
4 votes
1 answer
326 views

Do these red stop signs apply to aircraft or only to vehicles?

I mean; do planes also see these signs on their way to runway? Or just cars and other vehicles encounter this stop sign on their service road or interconnection roads that are assigned to them?
0 votes
1 answer
804 views

Can anyone explain what are the apron taxiway and aircraft holding taxiway with an illustration, please? [closed]

Note: There are 3 types of taxiway 1) Apron taxiway 2) Aircraft holding taxiway 3) Rapid exit taxiway
11 votes
2 answers
2k views

Why would an ILS installation need a “reflecting surface” around the glideslope antenna?

According to the NTSB, the installation of a glideslope serving runway 11 at KHTS (Tri-State Airport, Huntington, West Virginia) was delayed for over twelve years by the lack of suitable terrain for ...