EZRA HAUER OBSERVATIONAL BEFORE-AFTER STUDIES IN ROAD SAFETY estimating the effect of highway and traffic engineering measures on road safety - oxford pergamon 1997 - xiv,289P. INCLUDES BIBLIOGRAPHICAL REFERENCES AND INDEX ISBN: 0- 08 043053 8 Subjects--Topical Terms: Traffic safety. Traffic engineering. LC Class. No.: HE 5623 .H38 1997