Many thanks!
Many thanks!
Many thanks!
Hi Youjie!
You can do either top-down or bottom-up here.
Top-Down
Population of London/Surrounding areas residents...subset of which would be flying in/out
PLUS population of daily visitors (business / tourist)
# passengers per plan
Viola...# planes required per day...cut that in half to get take-offs only
Bottom-up
When you've been to a large airport, how many takeoffs have you see on the board at one time?
How many per hour?
How many peak hours per day?
How many non-peak hours per day and what % of peak would this be?
Is Heathrow probably larger or smaller than this sample airport (multiple by that factor)
And again, voila!
There are certainly many ways how to estimate this. The most intuitive that comes to my mind is calculating total capacity:
Googling wha the actual number is (although of course irrelevant, because it's about the approach, not the result): ~1300. So the estimation was pretty close ;)
Hey, why not post your structure & approach and coaches can comment.
Hello!
THERE IS A CASE SOLVED FOR YOU :)
Have a look at this free case I did for the PrepL library,:
You have the answer step by step
Hope you find it useful!
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