1. Allsop RE. 2005a . How many deaths are we prepared to accept? Europäischer Verkehrskongress, Salzburg, June 2005. Available at:http://eprints.ucl.ac.uk//1423/1/REA_SALZLE.pdf .
2. Allsop RE. 2005b . Some reasons for lowering the legal drink-drive limit in Britain . CTS Working Paper 2005/1 . London : Centre for Transport Studies, University College London .
3. Association of Chief Police Officers, Department for Transport UK. and Home Office UK . 2005 . Roads policing strategy . London .
4. Australian Transport Council . 2004 . National Road Safety Action Plan 2005 and 2006 . Canberra : Australian Transport Safety Bureau .