A speed-profile model for estimating 85th percentile speeds along horizontal alignments of rural two-lane highways in the United States is documented. The model is an evaluation tool to check for speed consistency violations on alignments with design speeds less than 100 km/h (62.1 mph). The model was calibrated by using speed and geometry data collected for 138 horizontal curves and 78 approach tangents on 29 rural highways in 5 states. A preliminary evaluation suggests that the model provides reasonable estimates of the reductions in 85th percentile speeds from an approach tangent to a horizontal curve.
Speed-Profile Model for a Design-Consistency Evaluation Procedure in the United States
Transportation Research Record: Journal of the Transportation Research Board
Transportation Research Record: Journal of the Transportation Research Board ; 1701 , 1 ; 76-85
2000-01-01
Article (Journal)
Electronic Resource
English
Speed-Profile Model for a Design-Consistency Evaluation Procedure in the United States
Online Contents | 2000
|Preliminary Validation of a Speed-Profile Model for Design Consistency Evaluation
Online Contents | 1996
|Preliminary Validation of a Speed-Profile Model for Design Consistency Evaluation
Transportation Research Record | 1996
|Preliminary Validation of a Speed-Profile Model for Design Consistency Evaluation
Transportation Research Record | 1996
|Summary of Design Speed, Operating Speed, and Design Consistency Issues
Online Contents | 2000
|