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IDENTIFYING CHRONIC DITECI OR ERRORS BACKGROUND AND DATA
AN ALGORITHM TO IDENTIFY SPLASHOVER
AN ALGORITHM TO IDENTIFY PULSE BREAKUP
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actual pulse breakups adjacent lanes based classiﬁcation boundary boundary errors chronic detector errors class 2 vehicles classiﬁcation w/o NVP Cleaned Data Coiﬁnan combined splashover concurrent video congested conditions data at station data sets detector actuations detector sensitivity dual loop detectors effective vehicle length estimated vehicle length false error Figure ﬁrst free ﬂow conditions ground truth data Groundtruth Non veh incorrect classiﬁcation w/o Incorrect PBU lane pairs length based vehicle long vehicles loop detector data loop detector stations measure vehicle length Net incorrect classiﬁcation non-pulse breakup obscured vehicle off-time on-time ratio PBU LCM/SO pulse in lane Raw Groundtruth sample semi-trailer trucks short vehicles single loop detectors source lane speciﬁc speed estimates splash splashover events station 9 northbound stations with pulse suspected pulse breakup suspected splashover target lane trafﬁc truck unique splashover vehicle class vehicle in lane vehicle not included video data