TTI Research Supervisor: Maysam Kiani Associate Research Engineer Texas A&M Transportation Institute TAMU 3135 College Station, Texas 77843-3135 (979) 317-2695
Pooled Fund Representative: Erik Emerson Wisconsin Department of Transportation 4802 Sheboygan Avenue, Room 651/P.O. Box 7916 Madison, WI 53707-7916 (608) 266-2842 [email protected]
This research project aimed to analyze and prioritize installation deficiencies in approach transitions using computer modeling. Approach transitions are considering more challenging than normal beam guardrails in regards to their ability to pass crash tests because they require reduced movement as a vehicle approaches the rigid barrier. However, there has been limited research on retrofitting approaching transitions to address this challenge, leading to a need for further understanding of the effects of modifications on their performance. For this study, the researchers conducted an extensive literature review, identified a representative approach guardrail transition, created a computer model of it, and evaluated common field variations using computer simulation. The results of this research will contribute to a better understanding of the behavior of approach transitions and help prioritize field variations for further study.