| Title | Analysis of SHRP2 Speeding Data: Methods Used to Conduct the Research |
|---|---|
| Record ID | 73572 |
| Personal Name Creator |
Brown, James L.; Richard, Christian M. |
| Corporate Creator | Battelle Memorial Institute |
| Corporate Contributor |
United States. Department of Transportation. National Highway Traffic Safety Administration. Office of Behavioral Safety Research |
| Publisher | United States. Department of Transportation. National Highway Traffic Safety Administration |
| Publication Date | 20200301 |
| Language | English |
| 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. |
| Rosap ID | dot:44241 |
| Rosap URL | https://rosap.ntl.bts.gov/view/dot/44241 |
| TRT Terms | Speeding; Automatic data collection systems; Information processing; Data processing operations; Data quality; Safety; Travel behavior; Behavior; Risk taking |
| General Subjects | driver speeding; methods; SHRP2; naturalistic driving; data processing; driver behavior; Strategic Highway Research Program 2 |
| Geographical Coverage |
United States |
| TRIS Online Accession No |
1736565 |
| Contract Number | DTNH22-11-D-00229 |
| Report Number | DOT HS 812 793 |
| Resource type | Tech Report |
| URL | https://ntlrepository.blob.core.windows.net/lib/73000/73500/73572/DOT-HS-812-793_20200320.pdf |
| Format | |
| Database | NTL Digital Repository |