Speed-profile model for a design-consistency evaluation procedure in the United States

被引：65

作者：

Ottesen, JL ^{[1
]}

Krammes, RA ^{[1
]}

机构：

[1] Texas Transportat Inst, College Stn, TX 77843 USA

来源：

DESIGN SPEED, OPERATING SPEED, AND SIGHT DISTANCE ISSUES | 2000年 / 1701期

关键词：

Calibration - Highway accidents - Highway systems - Mathematical models - Speed - Statistical methods - Transportation personnel;

D O I：

10.3141/1701-10

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

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.

引用

页码：76 / 85

页数：10