1. Road accidents in Australia;Langford;IATSS Res,2008
2. National road safety strategy 2007–2008;Australian Transport Council,2009
3. Crash characteristics at work zones;Zhao,2001
4. Cost of road crashes in Australia 2006;Bureau of Infrastructure Transport and Regional Economics (BITRE),2007
5. Manual for assessing safety hardware (MASH);American Association of State Highway and Transportation Officials (AASHTO),2009