Traffic flow measuring method and apparatus

Details Traffic flow measuring method and apparatus Traffic flow measuring method and apparatus

1995-04-05

1996-06-25

Swarthout, Brent A.

Communications: electrical

Vehicle detectors

With camera

340933, 348113, 364437, G08G 1017

Patent

active

055304419

ABSTRACT:
A method and an apparatus for measuring traffic flows, or in other words the flows of vehicles, inside and near a crossing. The method and apparatus are capable of extracting vehicles with a high level of accuracy. Overlap of vehicles can be avoided by setting the field of a camera to exclude a range from the inflow portion to the vicinity of center of the crossing but to include a range from the center to the vicinity of the outflow portion of the crossing. Accordingly, accuracy of traffic flow measurement can be improved.

REFERENCES:
patent: 3663937 (1972-05-01), Bolner
patent: 4884072 (1989-11-01), Horsch
patent: 5283573 (1994-02-01), Takatou et al.

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