Assessing Roadway Traffic Count Duration and Frequency Impacts on AADT Estimations
The objectives of this research project are to gain a quantitative understanding on: (1) How various short term traffic count durations affect and relate to estimated annual average daily traffic (AADT) as compared with long term continuous counting program estimations. The ultimate goal is to enable the Federal Highway Administration (FHWA) to provide the most feasible and technically sound guidance to States and other agencies on this issue. (2) How missing data from long term traffic monitoring data affects the AADT estimation and establish the critical threshold in terms of data usability. In other words, how much data can be missing and what type of data patterns missing can be tolerated in AADT estimation without any special consideration such these steps used in converting short term counts to AADT. (3) Traffic monitoring methods from a given segment on an annual basis with a 24 hour traffic count program (counted on a frequency of every year) vs. monitoring the same segment on a once every three year (with every 2nd and 3rd year factored to bring them to current year) basis but with a minimum 48 or 72 hour hour count and how these three different methods can effect AADT data on an annual basis.
- Record URL:
Language
- English
Project
- Status: Completed
- Funding: $308000
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Contract Numbers:
TPF-5(292)
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Sponsor Organizations:
Federal Highway Administration
1200 New Jersey Avenue, SE
Washington, DC United States 20590Alaska Department of Transportation and Public Facilities
Research Development & Technology Transfer
3132 Channel Dr
Juneau, AK United StatesGeorgia Department of Transportation
600 West Peachtree Rd
Atlanta, GA United States 30308Illinois Department of Transportation
2300 S. Dirksen Parkway
Springfield, IL United States 62764Minnesota Department of Transportation
Transportation Building
395 John Ireland Boulevard
St Paul, MN United States 55155Pennsylvania Department of Transportation
Keystone Building
400 North Street
Harrisburg, PA United States 17120Texas Department of Transportation
125 E. 11th Street
Austin, TX United States 78701-2483Wisconsin Department of Transportation
PO Box 7910
4802 Sheboygan Avenue, Room 104
Madison, WI United States 53707-7910 -
Project Managers:
Jessberger, Steven
- Start Date: 0
- Expected Completion Date: 0
- Actual Completion Date: 0
- Source Data: RiP Project 35747
Subject/Index Terms
- TRT Terms: Annual average daily traffic; Data quality; Time duration; Traffic counts; Traffic data; Traffic estimation; Traffic surveillance
- Subject Areas: Data and Information Technology; Highways; Operations and Traffic Management;
Filing Info
- Accession Number: 01573308
- Record Type: Research project
- Source Agency: Federal Highway Administration
- Contract Numbers: TPF-5(292)
- Files: RIP, USDOT, STATEDOT
- Created Date: Aug 22 2015 1:00AM