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Center for Data Reduction and Analysis Support

Data servers

The Center for Data Reduction and Analysis Support (CDRAS) supports standardized access to and analysis of numerous naturalistic driving study data sets (currently 2.5 PB) housed at VTTI for researchers within and outside of the institute. Services include coding of video and audio data, data quality assurance, data standardization, data mining, event selection, and data analysis. The center actively supports data analysis collaborations with external institutions.

Miguel Perez, Center Director

Miguel Perez
Center Director

Featured Projects

SHRP2 NDS Data Dissemination and User Technical Support

Projects are focused on the accessibility and application assistance of general use data files and interfaces to support data users, including those that are not SHRP 2 contractors. As part of this effort, reduced or de-identified files such as trip files, event files, and other reduced or aggregated files are developed to provide easier access to the SHRP 2 naturalistic driving study data. Completed projects have included the production and distribution of early results from the NDS data, data documentation, webinars, workshops, and other training and communication activities. Read More

Support for FHWA Safety Training and Analysis Center

The SHRP2 data represent an extensive collection of detailed information describing drivers, vehicles, trips, and roadways. The driver, vehicle, and trip information is referred to as NDS data, while the roadway data are referred to as Roadway Information Database (RID) data. Read More

Generation of de-identified SHRP2 trip traces

The objective of this project is to describe the nature of a trip (trip-purpose, in modeling terms) without revealing personally identifying information. A method to retrieve generic location categories from Google Maps has been developed and is being applied on the Raleigh, North Carolina portion of the SHRP2 NDS data set. Buffers around coordinate pairs are being tested. Read More

Groups

Data Reduction Group

The Data Reduction Group serves a variety of research groups who require video and/or audio analysis in the areas of driver performance and behavior metrics, scenario-based analyses, environmental characteristics, and validation support. The group’s goal is to provide efficient, accurate, and comprehensive coding of videos to meet the specific needs of each unique research project. Our work begins by conducting the necessary groundwork to prepare a video dataset for analysis and working alongside the researcher to develop a data reduction protocol. We then train and manage the required data reduction staff, conduct extensive quality control throughout the reduction phase, and prepare final sets of coded data. In addition to the group leader, the group currently encompasses an analyst, a team of coordinators and support staff, and a crew of data reductionists housed within four data reduction labs comprising over 50 workstations.

Julie McClafferty, Group Leader

Julie McClafferty
Group Leader


Data Analysis Support

The Data Analysis Support Group facilities analysis of naturalistic driving data by providing timely and efficient access to the datasets hosted at VTTI. The group is composed of experts in data preparation, standardization, mining, and analysis. Analysis support services are provided to any organization interested in utilizing large-scale driving datasets.

Jeremy Sudweeks, Group Leader

Jeremy Sudweeks
Group Leader

Center Faculty

Whitney Atkins

Data Analysis Support

Senior Research Specialist

Ben Boucher

Data Reduction

Data Reduction Coorindator

Julie Cook

Data Analysis Support

Research Associate

Rufina Costa

Data Analysis Support

Project Associate

Kenny Custer

Data Analysis Support

Maryam Davoodi

Data Analysis Support

Research Associate

Charles Layman

Data Analysis Support

Senior Project Associate

Julie McClafferty

Data Reduction

Project Director

Devon Moeller

Data Analysis Support

Project Associate

Miguel Perez

Data Analysis Support

Director, Center for Data Reduction and Analysis Support

Sarah Robinson

Data Reduction

Data Reduction Coordinator

Jeremy Sudweeks

Data Analysis Support

Group Leader

Brunilda Swannell

Data Reduction

Data Integrity Coordinator

Stuart Walker

Data Reduction

Project Associate

Tina Witcher

Data Analysis Support

Senior Project Associate

More Information

Contact

  • 540-231-1500
  • 540-231-1555

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