Each aircraft has wake turbulence which depends from their size. So there is a recommended distance between planes during landing. So what do you think about ATC safety balance, so that the CEO can choose, which distance plane will have during their landing.
This is regarding aircraft departing or arriving on a runway, not their spacing on the taxiways (otherwise 3NM would be a bit excessive…).
However due to this being a legal required distance and the airport has almost nothing to do with it I don’t think the CEO should be able to choose this.
Wake turbulence separation is incredibly important and for the arriving stream will be decided by the radar controllers, not the aerodrome controllers, the departing stream will be decided by the tower controller based on what the official laws are.
What could be a good idea is choose-able methods of increasing the traffic flow, for example designating a take-off and landing runway or allowing controllers to use or not use RSIVA (Reduced Separation In the Vicinity of the Aerodrome), where departures can be sequenced to roll as soon as the previous aircraft has lifted it’s wheels up (But only when they’re not going on the same SID - Standard Instrument Departure routing).
When the weather gets bad the rates of aircraft into and out of an aerodrome have to be lowered, taxi speeds have to be lowered, and aircraft have to be kept further away from the runway so as not to interfere with ILS and other runway signals.
It might be an idea to make it so you can buy and upgrade anti-fog systems such as more advanced categories of ILS and ‘follow the green’ taxiway lighting that help eliminate these delays.
I think the way this can be introduced in the game is that it matters when we give airlines their time slots, like the system in Airport Tycoon 3. When the airline negotiates a contract, the aircraft, or at least it’s bracket (light, medium, heavy, superheavy) is included, and that time that it eats as a slot becomes larger as the size of airplane increases. So if the airline decided to use a larger aircraft, regenotiation will occur as well as some changes in the slot schedules.
I don’t think you can control ATCs like that. They’re learned to be as efficient as pssible - every minute. If they have low traffic, they’ll still push them onto standard rate (which would be as described, depending what is the plane weight category, and on operational rules for specific airport).
I’d rather think how to calculate maximum rate for the airport (say, is it 30, or 50 planes an hour; both in terms of peak and continuous traffic). Some decisions (like speedways, runway separation, runway crossing, etc) DO increase or decrease traffic flow (and number of slots available during peak).