Improvement Design for Rollover Accidents Involving Large Passenger Vehicles


Public transportation provides a crucial solution to economic, energy, and environmental challenges. Large passenger vehicles in public transportation, however, often cause more serious accidents than passenger cars. It is therefore critical to improve both the designs of large passenger vehicles and road safety facilities. This work develops a design methodology to minimize the accident damage of large passenger vehicle rollover against guardrails. The design improvement is based on the finite element analysis (FEA) that reconstructs the common accident - bus rollover against guardrail on the road side. For the vehicle design, the FEA simulation reveals that strengthening side window pillars is effective, and the side window pillars are therefore improved by selecting proper parameters of material and thickness. The study also shows that the design of guardrail could be improved with an optimal size through uniform design (a methodology of Design of Experiments). The research results not only benefit the design improvement of large passenger vehicles and guardrails, but also provide useful information to the policy makers of safety regulations.

Meeting Name

ASME 2014 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference (2014: Aug. 17-20, Buffalo, NY)


Mechanical and Aerospace Engineering

Keywords and Phrases

Accident prevention; Accidents; Design of experiments; Finite element method; Guard rails; Motor transportation; Roads and streets; Safety engineering; Transportation; Vehicles; Design improvements; Design Methodology; Environmental challenges; Passenger vehicles; Public transportation; Research results; Rollover accidents; Safety regulations; Design

International Standard Book Number (ISBN)


Document Type

Article - Conference proceedings

Document Version


File Type





© 2014 American Society of Mechanical Engineers (ASME), All rights reserved.

Publication Date

01 Aug 2014