No physical items for this record

Title from cover.

Periodical

Publication suspended Jan. 1922-Feb. 1924; unnumbered issue published in 1996 and called "special ed."

TSLHHL

Online version of print publication.

Vols. for 1918-Aug. 1970 issued by: the Bureau of Public Roads (called May-June 1918, Office of Public Roads and Rural Engineering; July 1939-June 1949, Public Roads Administration); Oct. 1970-<197> by: the Federal Highway Administration; <Mar. 1979>-June 1982 by: the Offices of Research and Development; Sept. 1982-19 by: the Offices of Research, Development, and Technology; <Dec. 1990- > by: the U.S. Dept. of Transportation, Federal Highway Administration, Office of Research and Development.