Estimating Aircraft Taxi Times

A non-transitory computer readable storage medium with an executable program stored thereon, wherein the program instructs a microprocessor to perform operations comprising:

• receiving a request to estimate a time of arrival for an aircraft from a first position to a second position, the request having a plurality of request values for factors associated with the request, the factors being characteristics associated with the time of arrival;
• determining an interdependency among the factors based on information entropy and information gain, the information entropy indicating a disorder measurement in a historical data set corresponding to the factors, the information gain indicating a mutual measurement of the factors based on the historical data set;
• generating a decision tree based on the factors and the interdependency, a first one of the factors being at a first, highest level of the decision tree, the first factor in the decision tree having a first threshold value, at least one second one of the factors being at a second, lower level of the decision tree, the second factor in the decision tree having a second threshold value;
• and
• estimating the time of arrival based on traversing a path through the decision tree using the request values until a node is reached, the node indicated an estimated time of arrival.