QUALITY CONTROL OF ARCHIVED INTELLIGENT TRANSPORTATION SYSTEMS DATA
Journal Title: INTERNATIONAL JOURNAL FOR TRAFFIC AND TRANSPORT ENGINEERING - Year 2015, Vol 5, Issue 3
Abstract
Previous research has reported on the need to implement quality control programs for ITS data to address critical issues such as suspicious or erroneous data, nature and extent of missing data, and accuracy and comparability of ITS data to similar data sources. This paper summarizes the work completed to address quality control and completeness issues associated with a very large archived ITS data set composed of some 3.4 billion 20-second lane detector data records from San Antonio’s TransGuide. The paper includes a description of the quality control tests utilized, the results of the analysis conducted, and a discussion of ITS data completeness issues. An evaluation of temporal variations in the distribution of quality control flags showed that, in most cases, the highest concentration of flagged records occurred at night when traffic was light. Consequently, there was a higher chance for time intervals without vehicles which produced abnormal detector readings. Finally, the researchers evaluated the data completeness both at the aggregate level (by server) and a more detailed individual detector level. While the analysis described in this paper uses data from one jurisdiction (San Antonio, Texas), the methodology is sufficiently generic to enable implementation at other traffic management centers.
Authors and Affiliations
Khaled Hamad
Keywords
Related Articles
- EP ID EP137871
- DOI http://dx.doi.org/10.7708/ijtte.2015.5(3).02
- Views 112
- Downloads 0
THE EFFECTIVENESS OF PRIVATE MOTORIZED TRIPS INDICATORS IN REDUCING CAR USAGE
Neighborhoods with similar design may have different travel behavior due to the impacts of socio-economic indicators. There are also some effective indicators such as residents’ income, age, and self-selection factors r...
THE DYNAMIC BEHAVIOUR OF GEARS WITH HIGH TRANSMISSION RATIO
This paper describes the dynamic behaviour of helical gears with new standpoint for calculation of influence variables: mesh teeth stiffness, contact lines lengths and load distribution during mesh period. Nonlinear cont...
AN EVALUATION OF TURBO ROUNDABOUT PERFORMANCES: CASE STUDY OF THE CITY OF OHRID
The turbo roundabout is an innovative design of the two lane roundabout that has revolutionised roundabout design. According to the international research, it is determined that the turbo roundabout has a higher level of...
QUALITY CONTROL OF ARCHIVED INTELLIGENT TRANSPORTATION SYSTEMS DATA
Previous research has reported on the need to implement quality control programs for ITS data to address critical issues such as suspicious or erroneous data, nature and extent of missing data, and accuracy and comparabi...
THE LONG-TERM FORECAST OF LAND PASSENGER TRANSPORT RELATED CO2 EMISSION AND ENERGY USE IN HUNGARY
Hungary as the part of the European Union has to deal with the reduction of CO2 level. Reaching the 2050 target requires to examine and develop every sector of the emission. Transport has a dynamic and significant part i...