The invention belongs to the technical field of road traffic detection. A method comprises the steps that a condition with delay time tolerance ta is used to determine whether freeway incident detection data are missing; a condition screening method and a screening method based on statistics and traffic flow theory are used to determine whether the freeway incident detection data are abnormal; if non morning time data in the missing data and the abnormal data are all zero, a moving average method is used for repairing; and if occupancy and average speed in the abnormal data are high at the same time and partial traffic parameters are zero, an inverse proportion method is used for repairing. According to the invention, the method is applicable to freeway incident detection system practical application; the screening methods can dynamically adapt to different flow changes and meet a traffic flow mechanism; a repairing algorithm can retain partial real information of the abnormal data of the current period; a repairing result is closer to real data; and the method has the advantages of low computational complexity and small system overhead.
Freeway incident detection data cleaning method
2015-09-16
Patent
Electronic Resource
English
IPC: | G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS |
Real Time Freeway Incident Detection
NTIS | 2014
|NTIS | 1990
|Transferability of Freeway Incident Detection Algorithms
Transportation Research Record | 1996
|Transferability of Freeway Incident Detection Algorithms
Online Contents | 1996
|Transferability of Freeway Incident Detection Algorithms
Transportation Research Record | 1996
|