Development of ATC Tower Systems: Electronic Flight Strip System at LKPR and the Implementation of TAXI Milestone to SUM

Pavel Černý, Matěj Nesvadba, Stanislav Pleninger


This article describes the Electronic Flight Strip System used at Václav Havel Airport Prague and presents the results of an analysis of the clearance input from ATCOs. The outcomes indicate that various clearances are frequently issued together in a common time frame, usually depending on the traffic flow structure. The focus then moves towards the implementation of the TAXI milestone into the Start-Up Manager. The used statistic methods indicate that the amount of TTOT recalculations after AOBT decreases, but not significantly. However, the accuracy of TTOT after TAXI clearance is considerably better. The mean and most common deviation of ATOT from TTOT after the implementation of TAXI milestone is -1 minute. The results are challenged and confirmed by a further analysis of the TTOT-ATOT difference regarding individual stand/RWY pairs. The results may be used to adjust the assumed taxi times.


Clearance; Electronic flight strip system; Start-Up Manager; TAXI milestone


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D.J. Sheskin. Handbook of Parametric and Nonparametric Statistical Procedures. Chapman & Hall/CRC, 2003. ISBN 1420036262.


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