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# Highway Traffic Counts in Colorado 2018

Traffic counts on highways and various calculations, from Colorado Department of Transportation (CDOT), for 2018

## Columns

Name | Socrata field name | Column name in `sgr mount` | Data type | Description |
---|---|---|---|---|

the_geom | the_geom | the_geom | MultiLine | Auto generated field containing the geometry of each item. Users note that this field may or may not be completely accurate. It is recommended for the user to run a separate analysis. |

ROUTE | route | route | Text | A Unique (3 Number - 1 Letter) Highway Identification Code or Designating for a State Highway, Business Route, U.S. Route or Tolled Facility. Odd numbers typically run North and South and Even numbers typically Run East and West. |

REFPT | refpt | refpt | Number | A Linear Reference Number or Address Key (to the Thousandth of a Mile) Representing the Starting Point of a roadway segment. A Unique Landmark Location (not the running measure) or (maybe a one-time true measure) of a roadway segment along a State Route. |

ENDREFPT | endrefpt | endrefpt | Number | A Linear Reference Number or Address Key (to the Thousandth of a Mile) Representing the Ending Point of a roadway Segment. A Unique Landmark Location (not the running measure) or (maybe a one-time true end measure) of a segment along a State Route. |

RUNLENGTH_ | runlength_ | runlength_ | Number | |

RUNLENGTH1 | runlength1 | runlength1 | Number | |

LENGTH_ | length_ | length_ | Number | The Centerline Segment Length or Segment Distance (in Miles) to the Thousandth of a Mile. Length is the distance from one Road Segment to the next Road Segment. Length is a dimension or measurement that is carried out 3-decimal places. |

UPDATEYR | updateyr | updateyr | Text | The last calendar year in which the data was updated. |

COUNTSTATI | countstati | countstati | Text | |

AADT | aadt | aadt | Number | The annual average daily traffic count for the segment. (Total of all vehicles counted in a year divided by 365 days) |

AADTCOMB | aadtcomb | aadtcomb | Number | The AADT consisting of combination trucks (3 or more axles-single trailer or multiple trailers). |

AADTDERIV | aadtderiv | aadtderiv | Text | A Domained Value Element (AADTDeriv) indicating the Code Associated with the Factoring Method used in calculating the AADT determination Value. |

AADTSINGLE | aadtsingle | aadtsingle | Number | The AADT consisting of single unit trucks (vehicles larger than pickup trucks built on a single chassis). |

AADTTRUCKS | aadttrucks | aadttrucks | Number | Annual Average Daily Traffic for Trucks |

AADTYR | aadtyr | aadtyr | Text | The calendar year (YYYY) in which the annual average daily traffic count applies for the highway segment. |

CALYR | calyr | calyr | Text | The last calendar year in which the data was updated. |

COUNTYEAR | countyear | countyear | Text | The year the data was recorded |

DD | dd | dd | Number | Directional Distribution -The percentage of the design hour value flowing in the peak direction. |

DHV | dhv | dhv | Number | The 30th highest annual hourly traffic volume expressed as a percentage of AADT |

EDLA | edla | edla | Number | Equivalent Daily Load Axle |

OFFPKTRK | offpktrk | offpktrk | Number | The Peak percent of AADT that is composed of trucks of all types. Calculated by taking the number of trucks divided by the AADT |

PCTOFFPKCO | pctoffpkco | pctoffpkco | Number | Percentage of AADT for Combination Trucks During Off-Peak Periods |

PCTOFFPKSU | pctoffpksu | pctoffpksu | Number | Percentage of AADT for Single Unit Trucks During Off-Peak Periods |

PCTPKSU | pctpksu | pctpksu | Number | Percentage of AADT for single unit trucks during the Peak Hour. |

PCTPKCOMB | pctpkcomb | pctpkcomb | Number | Percentage of AADT for Combination Trucks During the Peak Hour. |

PKTRK | pktrk | pktrk | Number | The Peak percent of AADT that is composed of trucks of all types. Calculated by taking the number of trucks divided by the AADT |

ROUTECAPAC | routecapac | routecapac | Number | The maximum number of vehicles which has a reasonable expectation of passing over a given section of lane or roadway during a given time period under prevailing roadway and traffic conditions per the Highway Capacity Manual. |

VCRATIO | vcratio | vcratio | Number | The hourly traffic volume divided by the capacity of the segment. Thus, the volume/capacity ratio measure can be assumed to measure capacity sufficiency and delay is a measure of the quality of service. |

VCRATIO20 | vcratio20 | vcratio20 | Number | The 20 year projection for the VCRATIO value. |

YR20FACTOR | yr20factor | yr20factor | Number | A traffic forecasting statistic that gives an estimate of AADT for 20 years in the future. |

ROADTERRAI | roadterrai | roadterrai | Text | A Domained Value Element (terrain 0-3) used to identify the Predominant type of terrain through which the road segment passes as specified by AASHTO. |

SEASONALGR | seasonalgr | seasonalgr | Text | A Domained Numeric Designation (seasonalGroupID, 1-7) indicating the Coded Value associated with a list of Seasonal Variations used for short term data calculations. |

ISRAMP | isramp | isramp | Text |

Upstream Metadata