A handbook of highway safety design and operating practices. 

 - Rev. 
 - Washington  For sale by the Supt. of Docs., U.S. Govt. Print. Off.  1973- 
 - 1 v. (loose-leaf)  illus.  20 x 26 cm. 
<br/><br/> "Guidelines for the relief of other hazards ... will be issued in the future through loose leaf additions to this handbook." 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Roads--Safety measures.<br/>Roads--Accessories.
<br/><br/><label>LC Class. No.: </label>TE 228  / .U56 1973 
<br/><br/><label>Dewey Class. No.: </label>625.7