Annual Average Daily Traffic (AADT): Beginning 1977

data.ny.gov | Last Updated 29 Aug 2024

Annual Average Daily Traffic (AADT) is an estimate of the average daily traffic along a defined segment of roadway. This value is calculated from short term counts taken along the same section which are then factored to produce the estimate of AADT. Because of this process, the most recent AADT for any given roadway will always be for the previous year. Data is available for all New York State Routes and roads that are part of the Federal Aid System.

Tags: aadt, adt, annual average daily traffic, traffic volume

This dataset has the following 17 columns:

Column NameAPI Column NameData TypeDescriptionSample Values
Yearaadt_yeartextYear for which the annual average daily traffic (AADT) volume value is recorded.
Station IDstation_idnumberUnique identifier for each traffic count station concatenated from the region county code and the station number.
CountycountytextThe county where the count station exists.
SigningsigningtextDesignates what kind of a route or roadway the segment of roadway is. • Interstate: Interstate designation commonly known as the Interstate Highway System, a network of controlled-access highways that forms a part of the National Highway System. • US: US designation of a set of roads typically called U.S. Routes or U.S. Highways which forms an integrated network of roads and highways numbered within a nationwide grid in the United States. • NY: New York State Highway designation assigned at the State level. A blank field designates a ‘Local’ town, municipality or city roadway.
State Routestate_routetextA road designated with an Interstate or NY route number.
County Roadcounty_roadtextA road designated with a county-level road number.
Road Nameroad_nametextThe name of the road.
Beginning Descriptionbeginning_descriptiontextThe verbal description of the start of the segment of roadway for which the AADT applies
Ending Descriptionending_descriptiontextThe verbal description of the end of the segment of roadway for which the AADT applies
MunicipalitymunicipalitytextName of the municipality in which the AADT was calculated
LengthlengthnumberThe length of the road segment to which the count station applies.
Functional ClassfcnumberThe functional class of the roadway segment to which the count station applies. For more information on functional class, consult the FHWA link below. https://www.dot.ny.gov/gisapps/functional-class-maps
RampramptextSignifies by either a “Y” for yes or blank for no if a ramp is included in the roadway segment.
BridgebridgetextSignifies by either a “Y” for yes or blank for no if a bridge is included in the roadway segment.
Railroad Crossingrr_xingtextSignifies by either a “Y” for yes or blank for no if a railroad crossing is included in the roadway segment.
One WayonewaytextSignifies by either a “Y” for yes or blank for no if the roadway segment is a one-way direction.
CountcountnumberAnnual Average Daily Traffic (AADT) volume value: On any given day, the average numbers of vehicles that pass the segment of roadway as described by the Begin/End Descriptions. These figures are based on an actual count taken for that year or statistically validated estimated and forecasted values.