01042660

Component

During a comprehensive examination of origin-destination (OD) study methods, it became apparent that the limitations of human observers were just as important as the capabilities of the technologies that could be chosen. A series of measurements, calculations, and simulations were carried out to determine the conditions under which roadside license plate data collection methods such as Clipboard, Audiotape, Laptop, and Videotape would be most appropriate. Conditions such as traffic volumes, traffic speeds, and observer visual acuity can affect the speed and accuracy with which identification and recording of license plates can be accomplished. These factors influence the capture rate for license plates, which in turn determines the number of vehicles that need to be observed to produce an external-external OD matrix with sufficient accuracy. The time and effort that must be devoted to data transcription is also addressed. This paper describes the analyses that lead to a basis for deciding on the best license plate data collection for a particular situation.

01042056

07-2580

English

11p

2007

Transportation Research Board 86th Annual Meeting

CD-ROM

Figures (5) ; References (5) ; Tables (8)

Data collection; Evaluation; Identification systems; Information management; License plates; Origin and destination; Recording; Traffic speed; Traffic volume; Videotape recorders; Visualization

Data and Information Technology; Highways; Operations and Traffic Management; Planning and Forecasting; I72: Traffic and Transport Planning

Transportation Research Board Annual Meeting 2007 Paper #07-2580

TRIS, TRB

Feb 8 2007 7:17PM