Article Title,Year,Volume,Issue,Page Range,Author Puffin pedestrian crossing accident study,2011,2011,PPR507,1-62,Wood Assessing the perceived safety risk from quiet electric and hybrid vehicles to vision-impaired pedestrians,2011,2011,PPR525,1-74,Morgan Linking offence histories to accident causation using OTS data,2011,2011,PPR572,1-88,Cookson Restraint system safety diversity in frontal impact accidents,2011,2011,PPR577,1-249,Hynd Rock slope risk assessment,2011,2011,PPR554,1-146,McMillan Safer aerodynamic frontal structures for trucks: Final report,2011,2011,PPR533,1-68,Robinson The potential for cycle helmets to prevent injury - A review of the evidence,2011,2011,PPR446,1-118,Cuerden