Biographies - Staff
Tim DePaepe is a Railroad Accident Investigator specializing in Signal and Train Control for the National Transportation Safety Board (NTSB). Since he joined the NTSB, he has been the Signal Group Chairman on numerous Positive Train Control preventable accidents. Mr. DePaepe was with the Chicago and Northwestern Railroad for 17 years, in which he worked as a signalman, signal maintainer, and signal inspector, primarily working on highway-rail grade crossing signal systems, railroad signal systems and railroad interlockings. In 1994, Mr. DePaepe was appointed to serve as a Grand Lodge Representative for the Brotherhood of Railroad Signal (BRS) at its International Headquarters in Mount Prospect, Illinois. For 11 years he was the Director of Research, working on regulatory matters relating to railroad signalmen. He represented the BRS during the 49CFR236 Subpart H rulemaking and testified in Congress on four-quadrant gates; new technology in the railroad industry; and positive train control.
Loren Groff, Ph.D.
Loren Groff is a National Resource Specialist for Safety Data Systems and Analysis in the National Transportation Safety Board (NTSB) Office of Research and Engineering, Safety Research Division. He assists accident investigations and conducts safety data analyses, and regularly represents the NTSB and United States in international aviation industry and government initiatives and working groups involving safety data sharing and analysis. He has managed or comanaged several NTSB safety studies since joining the NTSB in 2002. Dr. Groff also participated in investigations of organizational factors in the June 2009 collision of two Washington Metropolitan Area Transit Authority Metrorail trains and a special investigation of organizational factors in several Metro-North Railroad accidents. Prior to joining the NTSB, he held positions as a flight instructor and regional airline pilot. Dr. Groff received his Ph.D. from Wichita State University in Human Factors Psychology.
Rick Narvell is serving as the Forum Manager for the Trains and Trespassers: Ending Tragic Encounters forum. He has been a Human Performance Investigator in the National Transportation Safety Board (NTSB) Office of Railroad, Pipeline and Hazardous Materials Investigations for over two decades. Prior to joining NTSB, he was a special agent with the Defense Investigative Service. Mr. Narvell is a US Naval Reserves veteran and a graduate of Washington College.
Joey Rhine is a Railroad Accident Investigator for the National Transportation Safety Board (NTSB). Prior to joining the NTSB, Mr. Rhine was with the Federal Railroad Administration for 7 1/2 years as a Motive Power and Equipment Safety Inspector covering parts of Southern California, Arizona, and Nevada. Before joining the federal government, Mr. Rhine was employed with Union Pacific Railroad’s Locomotive Department for 11 years. Mr. Rhine spent 4 years in the US Navy forward deployed in Yokosuka, Japan, on board the USS Blue Ridge (LCC-19) as a pipefitter/welder, firefighter, and approximately 4 years in the U.S. Navy SeaBee’s as a steelworker.