Civil and Environmental Engineering, Department of
Department of Civil and Environmental Engineering: Faculty Publications
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Document Type
Article
Date of this Version
2007
Citation
Transportation Research Record: Journal of the Transportation Research Board, No. 2035 (2007): 69-80. DOI: 10.3141/2035-08.
Abstract
Vehicle delay and queue length are quantitative measures of intersection performance. The technological advancement in the field of vehicle sensors and traffic controllers has reached a point where it has enabled efficient measurement of these performance measures. Two techniques are presented for real-time measurement of vehicle delay and queue length at a signalized Intersection, and these automated delay and queue estimates are compared with manually ground-truthed measurement. These techniques were evaluated at an instrumented intersection in Noblesville, Indiana. The root-mean-square error by both techniques was below 0.7 veh-s for-estimation of average delay and less than 0.15 vehicle for estimation of average maximum queue length, both on a cycle-by-cycle basis.
Comments
Copyright 2007, Transportation Research Board of the National Academies. Used by permission.