Traffic Count Stations
ODOT maintained traffic count stations, including permanent stations and short term count data collection locations.
- Published by
- ODOT Office of Technical Services, Traffic Monitoring
- Source
- Ohio Department of Transportation TIMS
- Original data
- tims.dot.state.oh.us
- Terms of use
- Public information, no warranty (ODOT)
- On the map
- Points
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What each record holds, as the publisher describes it: 17 fields.
| Field | Description |
|---|---|
STATION_ID_NBR | Unique Identifier for AADT Station |
NLFID | Primary key field that is the basis for identifying unique roadway segments in ODOT's graphic roadway network. The attribute is made up of seven components that describe administrative and other characteristics related to a route segment; Positions (1) - Jurisdiction, (2 thru 4) - County Code, (5 thru 6) - Route Type, (7 thru 11) - Route Number, (12) - Extension Code, (13) - Description Code, (14) - Direction Code; For further definitions of codes, please refer to the Roadway Information Manual |
CTL_BEGIN_NBR | GIS linear referencing information - location of Count Station |
COUNTY_CD | The 3-letter code of the county within Ohio (88 counties total) |
COUNT_SOURCE | Jurisdiction/organization count was taken for |
IS_PERMANENT | Yes - permanent station, No - short term count location |
ROUTE_TYPE | Two letter code indicating the basic transportation grouping or system that the route belongs to - third component of the NLFID |
ROUTE_NBR | Route number associated with the section of the route |
AADT_YEAR | Year original data was collected. |
AADT_CARS | Annual Average Daily Traffic for passenger type vehicles |
AADT_TRUCKS | Annual Average Daily Traffic for type BC trucks. (B=Buses C= Commercial Trucks) |
AADT_SINGLE_TRUCKS | Annual Average Daily Traffic for single-unit trucks. (A truck tractor unit pulling other such units in a saddle mount configuration will be considered one single-unit truck) |
AADT_COMBO_TRUCKS | Annual Average Daily Traffic for Combination Trucks. (Combination vehicles are vehicles with a tractor and multiple trailers, often trailers of different sizes and layouts.) |
K_FACTOR | 30th highest hourly volume of the year (out of 8,760 possible hours in a calendar year) expressed as a percentage of the AADT volume. K Factors (also known as Design Hour Volumes) are commonly used in highway project assessments and/or design concept reports. |
D_FACTOR | D Factor is the percentage of traffic moving in the peak travel direction during the 30th highest hourly volume of the year. It is calculated by dividing the higher directional volume occurring in the 30th highest hour by the total roadway volume for that hour. |
TRAFFIC_REPORTS | Link to corresponding traffic report |
OBJECTID | Internal feature number. [Esri] |