Bowman, Brian L.  1943- <br/><br/>
Supplemental advance warning devices / 
Brian L. Bowman. 
 - Washington, D.C. :  National Academy Press,  1993. 
 - 83 p. :  ill. ;  28 cm. 
 - Synthesis of highway practice / National Cooperative Highway Research Program,  186  0547-5570 ; .
 - Synthesis of highway practice ;  186. .
<br/><br/> "Transportation Research Board, National Research Council."  "Research sponsored by the American Association of State Highway and Transportation Officials in cooperation with the Federal Highway Administration."  "Project  20-5 FY 1989 (Topic 21-09)"--T.p. verso. 
<br/><br/>Includes bibliographical references (p. 78). 
<br/><br/><label>ISBN: </label>0309053145 
<br/><br/><label>LCCN: </label>93086257  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Traffic signs and signals.<br/>Traffic safety.
<br/><br/><label>LC Class. No.: </label>TE228  / .B69 1993 
<br/><br/><label>Dewey Class. No.: </label>388.312