Informational Guide on Data Collection and Annual Average Daily Traffic (AADT) Estimation for Non-Federal Aid-System (NFAS) Roads

Tsapakis, Ioannis; Holik, William; Das, Subasish; Kraus, Edgar; Anderson, Paul R.

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Informational Guide on Data Collection and Annual Average Daily Traffic (AADT) Estimation for Non-Federal Aid-System (NFAS) Roads

2020-03-01
By Tsapakis, Ioannis ; Holik, William ; Das, Subasish ; ...

File Language:

English

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Creators:

Tsapakis, Ioannis ; Holik, William ; Das, Subasish ; Kraus, Edgar ; Anderson, Paul R.
Corporate Creators:

Texas A&M University. Texas Transportation Institute
Contributors:

Starnes, Marc
Corporate Contributors:

United States. Department of Transportation. Federal Highway Administration. Office of Safety
Subject/TRT Terms:

Annual Average Daily Traffic Data Collection Decision Trees Low Volume Roads Random Sampling Rural Highways Traffic Counts Traffic Data Traffic Estimation Traffic Volume
Publication/ Report Number:

FHWA-SA-20-064
Resource Type:

Tech Report
Right Statement:

Public Domain
Geographical Coverage:

United States
Contracting Officer:

Starnes, Marc
Corporate Publisher:

United States. Department of Transportation. Federal Highway Administration. Office of Safety
Abstract:

This is an Informational Guide on traffic data collection and estimation of annual average daily traffic (AADT) for non-Federal aid-system (NFAS) roads. NFAS roads refer to rural minor collectors (6R) and both rural and urban local roads (7R and 7U). This Informational Guide describes four preparation steps for safety data integration and an eight-step process for developing a random stratified sampling scheme and AADT estimates for NFAS roads. The intent of the Informational Guide is to assist both experienced traffic monitoring personnel and those who are new to traffic data collection and AADT estimation. The Informational Guide includes methods suitable for agencies that do not collect data nor estimate AADT for NFAS roads, as well as for those desiring to improve their practices and the accuracy of their AADT estimates. Readers are encouraged to take those portions most relevant to their needs to develop a stratification scheme and AADT estimates. Agencies do not have to adopt all the activities described in the Informational Guide.
Format:

PDF
Funding:

DTFH61-16-D-00004L
Collection(s):

Federal Highway Administration
Main Document Checksum:

urn:sha-512:335629323718d778d4ea76f6bde184155065d3ea07900d49a1064a651e92bef1962b9e9fc66be8576ffbfd65cf088022aa845e0c4f35ff6891c8bdfd77678e18
Download URL:

https://rosap.ntl.bts.gov/view/dot/91956/dot_91956_DS1.pdf
File Type:

[PDF - 7.20 MB ]

File Language:

English

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