Article Title,Year,Volume,Issue,Page Range,Author Travel to school: influencing modal choice and encouraging safer journeys,1995,P288,,149-161,Clarke Safe routes to school,1995,P394,,249-256,Pettitt North Earlham Estate Norwich - the first UK 20 MPH zone,1992,P359,,61-72,Challis Traffic safety for vulnerable clients: excellence step by step,1997,P419,,249-261,Davies Travel to school: influencing modal choice and encouraging safer journeys,1995,P394,,249-256,Pettitt Cycling road safety and sustainability,1998,P428,,247-254,Osborne