@UserofPure,
I was an air traffic trainee in 1987. Like so many, I did not make it through the screen program (as it was known then). But I developed a love for the industry which landed me jobs with Boeing and McDonnell Douglas as a programmer in Flight Crew training programs. I went on to release my first commercial simulation called 'ATCsimulator' in 2001. This new venture will be the 3rd installment of this series. ATCsimulator and ATCsimulator2 are radar simulations of ARTS-IIIa and STARS equipment. It is used in college curriculim all over in the country at universities such as Purdue, Audburn, Middle Tennesse State, North Dakota, Embry-Riddle in Daytona Beach Florida and most recently Indiana State University. ATCsimulator2 has also been used in research at MIT. More info about that product can be found at
www.atcsimulator.com
This new sim is using 3d from the position of the tower controller instead of a radar screen. All of my work has been developed from actual photos of the equipment and professional training and training manuals/materials.
So, in answer to your question, my expertise on the topic of air traffic control has evolved over the past 22 years.