Browsing by Author "Jon, YJ"

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Missing data treatment on travel time estimation for ATIS
(2003)
Jon, YJ
;
Wen, YH
;
Lee, TT
;
Cho, HJ
;
統計學研究所
This study proposes a missing data recovery method based on grey-relational nearest-neighbor substitution techniques for treating with missing data from dual-loop detectors in estimating travel time and evaluates the effects of the missing data on travel-time estimation performance. Field data from the Taiwan national freeway no. I were used as a case study for testing the proposed model. Study results shown that the travel time estimation with missing data recovery was accurate even the missing data rate zip to 33%. It is indicated that the proposed missing data treatment model can ensure the accuracy of travel time estimation with incomplete data sets.