First International Roadside Safety Conference June 12, 2017 Standardization of Roadside Safety ISPE Process Using Data Dictionary for Pre- and Post-Crash Information First International Roadside Safety Conference June 12, 2017

Background FAST Act Requirement (2015) Section 1429: Techniques to identify and document roadside safety hardware devices. Resulting in the ongoing FHWA Hardware ID Project Determine available hardware ID methods. Provide analysis of available methods. Evaluate for ability to convey information, withstand roadside conditions, and connect to existing systems.

Background Knowledge gap identified… How much storage space and what information do we need to store on a tag?

Project Overview TTI Center For Transportation Safety Scope Funded by Texas Legislature (since 2001) $5 million of research each year Scope ISPE Framework Development ISPE Data Dictionary Hardware ID Crash Testing

Project Overview Review of Data (longitudinal barriers) in ISPE Literature Develop data categories, fields, and attributes. Pre- and Post-Crash Develop all inclusive data dictionary in traditional format

Literature Existing ISPE Data in Literature Albuquerque, F. (2011 & 2013) Evaluation of the in-service safety performance of safety-shape and vertical concrete barriers In-service safety performance evaluation of roadside concrete barriers Alluri, P. (2012) In-Service Performance Evaluation (ISPE) for G4 (1S) Type of Strong-Post W-Beam Guardrail System and Cable Median Barrier: Volume I & II In-service Performance Evaluation of Cable Median Barriers 2 on Florida’s Limited Access Facilities 3 Igharo, P. (2004) In-Service Performance of Guardrail Terminals in Washington State Li, S. (2011) In-Service Performance Evaluation of a Cable Median Barrier System on Interstate Highways

Literature Existing ISPE Data in Literature Ray, M. (2000) Performance of breakaway cable and modified eccentric loader terminals in Iowa and North Carolina: In-service evaluation In-service performance evaluation of bullnose median barriers in Iowa Van Zweden, J. (1977) In-service performance of highway barriers Yang, M. (2013) In-Service Performance Evaluation of Freeway Barriers in Guangdong Province, China

Data Categories Pre-Crash Data Categories

Data Categories Post-Crash Data Categories

Preliminary Data

Crash Data

Guardrail Data

Bridge Rails Data

Concrete Barrier Data

Cable Barrier Data

Conclusions Good starting point… Can add other roadside safety devices Needs formal champion/audience for additional comments and revision

Contact Information Chiara Silvestri Dobrovolny, Ph.D. Texas A&M Transportation Institute Phone: (979) 845-8971 c-silvestri@tti.tamu.edu Roger P. Bligh, Ph.D., P.E. Phone: (979) 845-4377 rbligh@tti.tamu.edu Charles R. Stevens Jr., P.E., PTOE Texas A&M Transportation Institute Phone: (713) 613-9230 c-stevens@tti.tamu.edu Student Support: Madilyn Mendoza Carlos Leyva