Lyles, Richard W. <br/><br/>
Comparison of Signs and Markings for Passing/ no : / 
Richard W. Lyles 
 - Washington, D.C. :  United States Department of Transportation,  1981 
 - 9 p. :  28 cm. 
<br/><br/> FHWA/RD-81/094 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Traffic flow--Mathematical models--United States<br/>Transportation engineering--United States--Congresses
<br/><br/><label>Dewey Class. No.: </label>388.31