Aggregate microtexture :  profile measurement and related frictional levels / 
	Stephen W. Forster 
 - Washington, D.C. :  U.S. Dept. of Transportation, Federal Highway Administration, Offices of Research & Development,  1981 
 - iv, 32 p. :  ill. ;  28 cm. 
<br/><br/> October 1981  Final report  Report no. FHWA/RD-81/107 
<br/><br/>Bibliography: p. 24 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Aggregates (Building materials)--Testing<br/>Pavements--Skid resistance--United States<br/>Pavements--Skid resistance
<br/><br/><label>Dewey Class. No.: </label>620.1910973