  Aircraft taxiing conflict is a threat to the safety of airport operations,
mainly due to the human error in control command infor-mation. In order to
solve the problem, The aircraft taxiing deduction and conflict early warning
method based on control order information is proposed. This method does not
need additional equipment and operating costs, and is completely based on
his-torical data and control command information. When the aircraft taxiing
command is given, the future route information will be deduced, and the
probability of conflict with other taxiing aircraft will be calculated to
achieve conflict detection and early warning of different levels. The method is
validated by the aircraft taxi data from real airports. The results show that
the method can effectively predict the aircraft taxiing process, and can
provide early warning of possible conflicts. Due to the advantages of low cost
and high accuracy, this method has the potential to be applied to airport
operation decision support system.
