CDOT-OTIS Online Transportation Information System

A calculatioin of horizontal alignment adequacy and estimate running speed, operating costs. Each curve and tangent segment is coded as a separate curve; segments are summed by curve class to obtain the total length in each class.

This information may be available from construction plans, GIS databases, and contracts for other data collection activities such as International Roughness Index (IRI) or pavement data, and video log. Code the applicable curve classification using: degree of curvature. Each Sample Panel section will need to be subdivided to report the extent of each applicable curve class. The primary goal is to populate curve data for each paved sample on the applicable functional system. There are 6 classes of curvature (i.e., Curve Class A through Curve Class F). The beginning and ending points will remain constant for each of the data items; however the values for these data items will reflect the length of that particular curve class. Furthermore, the sum of the values for each of the 6 curve class Data Items must be equal to the total length of the entire sample. Report the sum of the class lengths for each of the six curve classes (in units of miles); the sum of all curve lengths must equal the Sample Panel section length. A Under 3.5 degrees B 3.5 – 5.4 degrees C 5.5 – 8.4 degrees D 8.5 – 13.9 degrees E 14.0 – 27.9 degrees F 28 degrees or more

Title	Type	Description
COHPMS	Table	This dataset contains roadway sections in the State's Sample Panel that are under the jusidiction of cities and counties. The Sample Panel provides detailed statistical data on a randomly selected sample of roadway sections in the State's public roadway inventory to meet Federal reporting requirements for the Highway Performance Monitoring System (HPMS).