Hauer, Ezra <br/><br/>
Observational before-after studies in road safety :  estimating the effect of highway and traffic engineering measures on road safety/  
Ezra Hauer.  
 - WA, United Kingdom :   Emerald Group Publishing Limited,   1997. 
 - xiv, 289 pages :  illustrations, charts ;   25 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>9780080430539  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Traffic engineering<br/>Traffic safety