Ashland, Kentucky origin & destination traffic survey report : transportation needs study / undertaken by Vogt, Ivers & Associates. (OCLC #82928188)
The OCLC copy I found was not only very brief:
040 ǂa JCR ǂc JCR 110 2_ ǂa Vogt, Ivers and Associates. 245 10 ǂa Ashland, Kentucky origin & destination traffic survey report : ǂb transportation needs study.
but also clearly only for Volume I of the set. The introduction describes the “Ashland Transportation Study report” which would be complete in two volumes: Volume I, the report of the Origin and Destination Survey (this volume); and Volume II, which would report on a different topic. If I had both pieces in hand, I might have cataloged them as a set, but I have no evidence the volume 2 was even published, so I completed the record for just the one volume. I described the apparent “set” aspect in a note, and included the set’s title as a title added entry for discovery.