Analysis of SHRP2 Speeding Data: Methods Used to Conduct the Research

Brown, James L.; Richard, Christian M.; Battelle Memorial Institute

doi:10.21949/1525974

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Analysis of SHRP2 Speeding Data: Methods Used to Conduct the Research

2020-03-01
By Brown, James L. ; Richard, Christian M.

[PDF-3.76 MB]

English

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Details:

Creators:

Brown, James L. ; Richard, Christian M.

Brown, James L. ; Richard, Christian M. Less -
Corporate Creators:

Battelle Memorial Institute
Corporate Contributors:

United States. Department of Transportation. National Highway Traffic Safety Administration. Office of Behavioral Safety Research
Subject/TRT Terms:

[+]

Automatic Data Collection Systems Behavior Data Processing Data Processing Operations Data Quality Driver Behavior Driver Speeding Information Processing Methods Naturalistic Driving Risk Taking Safety SHRP2 Speeding Strategic Highway Research Program 2 Travel Behavior
Publication/ Report Number:

DOT HS 812 793
DOI:

https://doi.org/10.21949/1525974
Resource Type:

Tech Report
Geographical Coverage:

United States
Edition:

Final Report: September 2013-March 2018
Contracting Officer:

Atkins, Randolph
Corporate Publisher:

United States. Department of Transportation. National Highway Traffic Safety Administration
Abstract:

This report describes the methodologies and datasets used to prepare a set of data reductions that supported analyses of speeding behavior as discussed in the Findings Report from the same study (Richard, Lee, Brown, & Landgraf, 2019). Importantly, it is intended to be a guide that provides helpful insights for researchers to use when navigating the process of Strategic Highway Research Program 2 (SHRP2) data acquisition and processing. The report focuses primarily on the methods used to (1) obtain and process trip time-series data, (2) prepare data reductions to extract free-flow episodes (FFE)—driving in free-flow conditions where drivers have the opportunity to speed—and (3) extract speeding episodes (SE). The workflow for preparing the data reductions consisted of three components: data acquisition, data management, and data processing. Data acquisition consisted of identifying variables of interest, selecting variables, obtaining a data sharing agreement, preparing and submitting data requests, and retrieving data extracted by the SHRP2 data contractor (VTTI). Data management included tracking the status of each trip during processing; retrieving, manipulating, and storing data in a relational database management system; database administration; data security; and data quality management. Data processing included developing and implementing data processing software tools that cleaned the data; parsed them into Trips, FFEs, and SEs; and produced data reductions suitable for analysis. Lessons learned during the conduct of the research are provided.
Format:

PDF
Funding:

DTNH22-11-D-00229
Collection(s):

NHTSA - Behavioral Safety Research
Main Document Checksum:

[+]

urn:sha256:b720db6c5e1c13f44c37e8058e0f3cc60142943db2976aa371796c79412b774e
Download URL:

https://rosap.ntl.bts.gov/view/dot/44241/dot_44241_DS1.pdf
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Analysis of SHRP2 Speeding Data: Methods Used to Conduct the Research

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