Karimi, SahandThis report will mainly talk about three different projects, all of which focus on the theme of improving the operation of the national airspace system in order to make it more efficient. All of these projects contain a common component which is to predict delays and cancellations. In my research, I have performed significant amounts of statistical analysis & modeling with detailed data collected from air carriers nationwide. My part of work (Queuing delays) is a part of predicting delays and cancellations.en-USSocietal Infrastructure SystemsThesis