Center for Alcohol Drug and Education Studies
Troy D. Walden has over 28 years invested in highway safety as a law enforcement officer, crash re-constructionist, traffic safety advocate and impaired driving researcher. Dr. Walden received his Bachelor of Science Degree in Criminal Justice from Sam Houston State University in August of 1987. He received his Master of Science Degree in Education from Texas A&M University in August of 1999 and his Doctor of Philosophy from Texas A&M University in May of 2005.
Dr. Walden began his law enforcement career with the City of College Station (Texas) Police Department in 1988. While there, he served in the Patrol division as a Sergeant, Recruiting and Training, Special Enforcement, and the Criminal Investigation Divisions.
In January 1999, Dr. Walden became employed with the Texas A&M University System: Texas Engineering Extension Service as a law enforcement training program coordinator. Dr. Walden was responsible for training management of the statewide (Texas) impaired driving education program initiatives including the Standardized Field Sobriety Testing and Drug Evaluation and Classification programs.
Prior to joining the Texas A&M Transportation Institute, Dr. Walden was a private consultant specializing in traffic safety, human performance measures, and legal issues surrounding alcohol and drug impairment. He has created professional development training for traffic safety administrators, legal professionals, consultants, and law enforcement officers at the state, national and international level. Dr. Walden has provided technical case reviews and analysis in hundreds impaired driving cases involving both alcohol and other drugs that impair.
Presently, Dr. Walden is the Director of the Texas A&M Transportation Institute’s Center for Alcohol and Drug Education Studies (CADES) that currently resides within the Institutes Center for Transportation Safety. His research interests include alcohol and drug driving, the behavioral impact of alcohol and drugs on human performance and alcohol and drug impact on traffic safety. He has written and presented his research findings at many State, National, and International conferences. Dr. Walden serves as the Chair of the Texas Impaired Driving Taskforce and serves as a member on several statewide traffic safety coalitions and working groups.
Associate Transportation Researcher
Paige Ericson-Graber has six years of experience at the Texas A&M Transportation Institute. Her research interests include impaired driving, motorcycle safety, and crash analysis. Ericson-Graber has served as principal and co-principal investigator on several projects, but her primary role is serving as the Administrator of the Texas Impaired Driving Task Force. Ericson-Graber has given numerous presentations on impaired driving at the local, state, and national level, including most recently at the 2018 Lifesavers Conference.
Robert C. Gilbert, Jr.
Research Specialist III
Mr. Bob Gilbert joined Texas A&M Transportation Institute’s Center for Transportation Safety Crash Analysis Group in June 2009. In 2015 he transferred to the Center for Alcohol and Drug Education Studies. His focus is on law enforcement initiatives and coordinating research efforts within the law enforcement community. Mr. Gilbert retired in April 2009 as a Lieutenant with the Texas Department of Public Safety (DPS) – Highway Patrol Division. He was stationed in Houston, Texas for the majority of his law enforcement career. Mr. Gilbert currently holds a Special Ranger commission with DPS. He also has his Master Peace Officers Certification, and Instructors Certification from the Texas Commission on Law Enforcement (TCOLE).
TTI Assistant Research Scientist
Mr. Graber has more than 5 years of experience at the Texas A&M Transportation Institute. His research interests lie in data integration and governance, crash analysis, and training law enforcement to use data to drive their decision-making. Mr. Graber has served as principle investigator on multiple projects and is pursuing his PMP certification.
Mr. Graber has been the principle investigator for multiple projects and received his Certified Associate in Project Management (CAPM) in 2015. He received his Master’s Degree from the Bush School of Government and Public Service at Texas A&M in 2012.
Cinthya Soares Roberto
Assistant Transportation Researcher
Cinthya Roberto joined TTI as an Assistant Transportation Researcher for the CADES in 2016. She provided support in projects related to Core Traffic Records integration, Driving Under the Influence Tracking Systems, Impaired Driving Task Force, BAC reporting practices and others. She is highly interested in researching about DWI recidivism. Before TTI, she graduated with a degree in Policy Analysis from The Bush School of Government. Her yearlong Capstone project involved researching about non-tariff trade barriers between the United States and Mexico. Trying to measure the extent these barriers burden truck companies and act as a deterrent to conducting business on major freight networks.”
Assistant Transportation Researcher
Mr. Stewart is an assistant transportation researcher for the Center for Alcohol and Drug Education Studies (CADES) at the Texas A&M Transportation Institute. He has been with the Institute since 2011 and has more than a decade of professional experience in the transportation industry.
Formerly the Safety Coordinator for the Institute, he now focuses his prior training and educational experience instructing classes and webinars for the criminal justice community on topics ranging from ignition interlocks, to blood alcohol concentration reporting, to the Texas Department of Transportation’s CRASH system. Additionally, he has guided the state of Texas on the implementation of a DWI/DUI offender tracking system and assists with the State’s various forums and conferences dealing with impaired driving and traffic safety.
In addition to working on projects in the Center, he also works with the Human Factors program at TTI doing motorcycle outreach and research. An expert motorcycle road racer in the Central Motorcycle Racing Association, Motorcycle Safety Foundation certified on-track instructor, and avid rider/enthusiast, Mr. Stewart has a vast knowledge of motorcycling. He is also one of the key organizers of the Texas Statewide Motorcycle Safety Forum and Texas Motorcycle Safety Coalition.