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Questions tagged [air-traffic-management]

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1answer
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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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2answers
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1answer
263 views

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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2answers
141 views

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 ...
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2answers
180 views

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 ...
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3answers
569 views

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 ...
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2answers
123 views

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 ...
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0answers
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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 ...
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1answer
209 views

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 ...
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1answer
143 views

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 ...
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0answers
121 views

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) ...
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1answer
116 views

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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1answer
131 views

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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1answer
383 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
273 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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0answers
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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 ...
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1answer
373 views

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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3answers
14k views

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 ...
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0answers
78 views

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, ...
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1answer
301 views

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 ...
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1answer
11k views

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 ...