RETRACTED: A recommended specification for heavy vehicle rear underrun guards

This article has been retracted at the request of the Editors. Please see Elsevier Policy on Article Withdrawal (http://www.elsevier.com/locate/withdrawalpolicy).Reason: The author has in this instance failed in his ethical responsibility on the grounds of reporting standards (failing to provide original and accurate account of research), plagiarism (copying substantial parts and claiming results from research from Boucher, D.; “Heavy trailer rear underride crash tests performed with passenger vehicles”; unpublished Transport Canada Technical Memorandum TMVS 0001; Ottawa; Ontario; July 2000) and acknowledgement of sources (failure to obtain permission from Transport Canada). This constitutes unethical publishing behaviour and is unacceptable.