Questions tagged [air-traffic-management]
The air-traffic-management tag has no usage guidance.
37
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How do hot air balloon pilots avoid collisions?
There are many places in the world where hundreds of hot air balloons are flown in close proximity to each other. How do the pilots steer them away from each other to avoid mid-air collisions?
Wind ...
31
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3
answers
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What does ATC do during "slow" times?
I know at larger airports, it's NEVER a slow time. But what about at smaller airports that are large enough to rate manned ATC, but things aren't always fast-paced, high-traffic like at JFK or DFW, ...
30
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6
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Why cruise at 7000' in an A319?
I was on a flight from Philadelphia (KPHL) to Boston (KBOS), after some delay and some change of route due to weather, the captain announced that we will be cruising at 7000' due to delays in the area....
22
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2
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How do airplanes maintain separation over large bodies of water? [duplicate]
I have read that the oceans are big enough that ground radar stations only reach so far out. I assume that means after a certain distance from the coast they leave ATC services. Do airplanes employ ...
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2
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Are Air Traffic Flow Management Algorithms mostly based on linear programming techniques?
I'm really interested in knowing the methods used by the Air-Traffic-Flow-Management (ATFM) providers to increase the throughput of the airspace by balancing safety, efficiency and cost. I've been ...
8
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1
answer
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At what intervals do planes land and take off from Chicago O'Hare?
Is there some data available which shows the intervals at which planes take off and land at Chicago O'Hare?
Just by taking a look around the last time I visited ORD couple of months back, it seems to ...
6
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3
answers
2k
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Can pilots choose runway and landing direction?
Pilots normally receive landing clearance for a specific runway assigned by ATC. Absent an emergency, can pilots of commercial flights (depending on the wind conditions for example) choose
a ...
6
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1
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Is the ATC of the lower and upper areas of the Netherlands combined or segregated?
I am simulating the capacity of the Netherlands airspace by using the sector capacity. But I am wondering for different height, the capacity works for both or a single level.
Therefore, I want to ...
6
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1
answer
610
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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?
6
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1
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513
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What is black routing and red routing?
In a meeting with aviation experts, the terms black routing and red routing were discussed. What are they? From the discussions I was able to put together that either the TMU (Traffic Management Unit) ...
5
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1
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What is the minimum distance allowed between planes in flight, in Europe?
What is the minimum vertical and horizontal distance allowed between aircraft operating in European airspace?
(This linked question is the US-specific equivalent of what I am asking about European ...
4
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3
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422
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How to become a master at multitasking
I am a student pilot with 60 hours. The first 50 hours I received 5 years ago and the last 10 is what I have received within the past month.
I need some advice:
Throughout training My instructor ...
4
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1
answer
711
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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?
4
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1
answer
2k
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What is the difference between en-route delays and airport delays?
ANSP performance is gathered an published online on https://ansperformance.eu. They monitor complexity, delays, efficiency and other operational data.
I also noticed they have two ways of describing ...
3
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2
answers
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Why are both ATC and TCAS tasked to prevent collisions although TCAS takes precedence anyway?
« The primary purpose of ATC worldwide is to prevent collisions
[...] Many aircraft also have collision avoidance systems, which
provide additional safety by warning pilots when other aircraft get
...
3
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2
answers
251
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When must airliners follow airways? [duplicate]
Please give a basic explanation of how commercial aviation traffic is routed for readers without any foreknowledge:
Can commercial aircraft only follow airways like cars on highways ?
Or are ...
3
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1
answer
366
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How are sector capacity constraints set in the current US ATC system?
My understanding is that in ATC, one of the constraints when considering the distribution of flights is the number of aircraft occupying a sector. Each sector can have different capacities.
I have ...
3
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0
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129
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How are AFTN costs charged to ANSP's and Airspace Users?
I'd like to know how ANSP's like the FAA/SENEAM/etc.. get charged for sending and receiving messages over AFTN. I'm wondering if it is on a per characher/message basis or if they pay in bulk. Also, ...
2
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2
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While descending some pilots put local pressure long before reaching transition level?
Isn't this risky?
I thought once they pass transition level they should change to local pressure...
But is this not risky to put local pressure qnh before... risky in terms of separation wheter ...
2
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1
answer
137
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Was NextGen simulated/tested against alternatives?
Researchers in aviation usually test systems in simulated environments to find out the pros, cons, challenges, etc. Now ADS-B is a key component of NextGen and its European counterpart. And I've seen ...
2
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1
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128
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What does this term in a SimBrief flight plan routing mean?
I checked everywhere and I cannot figure out what the bold sections mean in this flight plan routing I got from SimBrief:
DTTA/11 N0430F360 TOBI3C TOBIB UA725 TANIT UM733 OSMAR DCT ALEDI DCT APSUX ...
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1
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What does "RA" mean in the FAA Terminal Constraints?
I'm trying to interpret the Terminal Constraints listed on the Operations Plan Advisory (https://www.fly.faa.gov/adv/adv_spt.jsp). RA seems to be used in the context of weather, but I haven't been ...
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1
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How many private jets land at Heathrow airport per day?
Heathrow airport is one of the busiest airports in the world, one would assume most traffic there is reserved for commercial airliners because they carry a much larger number of passengers.
How many ...
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1
answer
781
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Is a holding pattern always counter-clockwise?
Is a holding pattern always counter-clockwise? Or is it dependent upon the controlling airspace?
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"Report a 3 mile right base" - where is it measured from? [duplicate]
At which position should you report to ATC?
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167
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What is the Surface Management (SMAN) all about?
Like AMAN (Arrival Management) and DMAN (Departure Management), what is the SMAN (Surface Management) all about? Is SMAN a studied concepts, or is it a technical system ?
If the SMAN is rather a ...
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1
answer
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Is the Special Traffic Management Program (STMP) still in use?
I'm doing some research on STMP.
this NBAA link say that STMP is gone.
however, this link makes it look like STMP was in use for oshkosh 2021. the subdomain may indicate it wasn't used though so it's ...
1
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1
answer
212
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What is the procedure to fill/send/approve a flight plan to the ATS network from outside?
We are planning to develop an app that allows general pilots to fill/send a flight plan to the ATS. We're wondering to know if it is needed to have a regular access (register access or account) to the ...
1
vote
1
answer
191
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Mathematical model used in free route airspace
As a new researcher in an air traffic institute, I am currently looking into mathematical models - promising or otherwise - that are used in modelling free route airspace.
What is a good place to ...
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1
answer
101
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Are taxi-way routing details saved?
I am currently working on taxi-way route optimization. Are there any systems that store the taxi routes taken by the aircraft either by hour or by day or by airplane?
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0
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How long does it take for a new FIR to be created by ICAO
How long does it take ICAO to create/approve a new Flight Information Region(FIR)?
Occasionally FIRs are split because of various reasons. The question is how long ICAO takes to approve the new FIRs ...
0
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2
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If all aircraft were TCAS-equipped, how would this change ATC routines?
« The primary purpose of ATC worldwide is to prevent
collisions, organize and expedite the flow of air traffic, and
provide information and other support for pilots. » (source)
If all aircraft ...
0
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1
answer
215
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Is it possible for more than one flight to have the same departure and arrival time slots?
I'm working with real ATFM data such as the planned departure and arrival times of several flights within a given period of time, and I came across a surprising feature.
I found out that some flights ...
0
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1
answer
710
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What should be approx altitude of jet aircraft 10 nautical miles to landing [duplicate]
Please assume the elevation of airport to 2000ft ASL. Under what conditions ATC might mandate aircrafts to fly at lower altitudes? What might be approximate speed at this distance?
0
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What is the name of the previous Air Traffic Management System (ATMS) of Hong Kong International Airport?
Hi I really need help for the question.
The current ATMS for Hong Kong International Airport is the AutoTrac III, but does anyone know what is Hong Kong's Previous ATMS?
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How to find out how many aircraft depart/land from a country per day?
I am trying to get the following information. I would like to know for each day how many aircraft have taken off and departed from a specific country. This information should be up to date and ...
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1
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Is 1,000ft vertical separation in a sparse airspace increasing risk unnecessarily? [closed]
On Saturday the 8th of August 2020 at 19:40:10 UTC, two flights flying in opposite directions, in the same corridor over India were vertically separated by just 1,000ft. The flights were SQ322 from ...