Freeway operations
Subtitle: 4 reports.
Series: Highway research record,; no. 202; National Academy of Sciences. Publication 1533.; Publication (National Research Council (U.S.)) ;; no. 1533.
Published: 1967
Place of publication: Washington
Language: eng
Number of pages: 122
Subjects: Electronic traffic controls.; Express highways -- Design and construction.; Disabled vehicles on express highways.
Notes: Includes bibliographies.