GeospatialCollection MethodNot specifiedHorizontal AccuracyNot specifiedCoordinate System DisclaimerNot specifiedHorizontal Coordinate SystemNot specifiedWeb Display Coordinate SystemNot specified
Data QualityExpected Update FrequencyManual - annual
Data UpdatesUpdate TypeManual - annualUpdate MethodManualUpdate ScheduleAnnuallySource Update ScheduleNot specifiedTotal Records At Initial Publish868
Data DescriptionSingle RowHighway route, curvature, gradation, location, constructed year, inspection year, and quality measuresCollection ModeNot specifiedLong DescriptionThis dataset contains roadway sections in the State’s Sample Panel that are under CDOT’s jurisdiction. 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). Fields describe roadway segments identified by beginning and ending measured points. Segments are characterized by thickness metrics for rigidity and flexibility, roadway curvatures and grades, a score for the feasibility for widening the roadway, types of obstacles relevant to widening, local route identification, sight distance, speed limits, designation of right or left turn lanes, signal type and length of green time, number of signals in the segment and a description of road terrain. Colorado Highway Curves and Grades (HPMSSTE).Related DatasetsRelated to: Highway Milepoints in Colorado, Highway Mileposts in Colorado, Highway Quality in Colorado 2014, Highway Quality in Colorado 2015, Highway Quality in Colorado 2016, Highway Quality in Colorado 2017, Highway Routes in Colorado, Highway Traffic Counts in Colorado 2014, Highway Traffic Counts in Colorado 2015, Highways in ColoradoCollection MethodNavigation Satellite System (GNSS) antennas ; Turnkey position and orientation system which enables sub-meter accuracy positioning for road asset surveys (2) Distance Measuring Indicator (DMI) BEI 5000 Pulse Incremental Encoder Allows for collection of high resolution imagery at posted speeds (3) Cameras (4) Allied Vision GigE Frame rate 15 images per second, 1936x1456 color resolution (4) Pavement Imaging System INO Laser Road Imaging System (LRIS) Two linescan cameras and lasers configured to image 4m transverse road sections with 1 mm resolution (4000 pixel) at speeds that can reach 100 km/h (5) Surface Road Profiler ICC 5-laser System (One Selcom 32KHZ, Four Selcom 16KHZ) Used for precise pavement ride and rut measurements. The 32KHZ lasers have a typical resolution (smallest increment of distance that can be detected) of 0.005 and the 16KHZ have a resolution of 0.0094. Newest Record in Dataset2015Oldest Record in Dataset2000Data Collection InstrumentNot specifiedField Names, comma delimitedhpmsid, route, refpt, endrefpt, length_, updateyr, yradd, yrinspect, rigidthick, flexthick, basetype, basethick, curves_a, curves_b, curves_c, curves_d, curves_e, curves_f, grades_a, grades_b, grades_c, grades_d, grades_e, grades_f, pkpark, widenobstacle, widenfeas, sightdist, intersection, ltturnln, rtturnln, signaltype, greentime, signalqty, stopqty, nonctrlqty, comments, objectid_1, prislabcrack, lrsroute, frommeas, tomeasDate of Initial Dataset CreationNot specified
Dataset CoverageGranularityNot specifiedUnit of AnalysisTabularGeographic CoverageState
