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Air Traffic Controller survey on Time Based Separation

Survey ended.

Dear Madam, Dear Sir,

Thank you very much for answering my questions, it will be of very valuable help for me.

Here is the background explaining the reason of this survey: As an air traffic controller student at skyguide in Switzerland, I have chosen Time Based Separation (TBS) as my thesis subject. I am aiming at reviewing the theoretical aspects of TBS as well as the implications for the air traffic controller, the pilot and the airline. This questionnaire aims at understanding the implication of this new type of approach from the controller point of view.

I have based the following questions on the feedbacks I have received from the pilots, therefore there are many open questions; thus none of them will be mandatory to answer and you will be able to submit your survey even if you choose not to answer every questions.

Once again, thank you very much for your help, it will be very valuable for writing my thesis. I am looking forward to reading your answers. I will collect the answers until the 25th of November and will treat them anonymously.

Best regards,

Aurélie Wannaz

This survey is addressed to any Air Traffic Controller working at London Heathrow and having experienced Time Based Separation.

Apparently, pilots are not that much impacted by the traffics being closer to each other, what is your feeling as a controller?

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Did you need some time to adapt yourself to this new « picture » on the radar screen?

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Pilots report that this new method generates more stress, what about you as a controller?

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One of their stress factor is related to late landing clearance, do you feel more stress not knowing if the preceding traffic will vacate soon enough?

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Is the level of radio transmission during TBS higher than it used to be? Is this a stress factor to you?

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Do you think that there are more go-around triggered since TBS?

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If yes, triggered by whom?

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Do you experience difficulties with pilots not complying with the speed you assign them? If yes, why?

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Did you experience difficulties (if you also work as tower controller) with pilots taking too much time to vacate the runway? Does it impact your work as approach controller?

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Did you workload increase since TBS? In which way?

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Is TBS more challenging to apply in some meteorological conditions? If yes, which conditions? Why?

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Do you personally appreciate TBS?

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Do you notice an increase of the number of aircraft landing hourly?

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Does it sometimes happen to use the same runway for both departure and arrival with TBS?

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Do you have any other comments about TBS?

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Which controlling position do you occupy?

For how long have you been a controller?

If you wish to consult the result of my survey, you may add your email address below and I will send you my report when it will be available.

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Thank you very much for you help.