Yarnell afterstudy.
Contributors: Arizona. Highway Dept. Division of Economics and Statistics.; United States. Bureau of Public Roads.
Publisher: Arizona Highway Dept.
Published: 1954
Place of publication: [Phoenix, Ariz.]
Language: eng
Number of pages: 20
Subjects: Traffic congestion -- Arizona.; Traffic surveys -- Arizona.; Trucks.
Other titles: Congestion afterstudy for uphill truck lanes.; Report on yarnell hill afterstudy.
Notes: "Prepared by the Arizona Highway Department, Division of Economics and Statistics in cooperation with U. S. Department of Commerce, Bureau of Public Roads."

Cover title: Congestion afterstudy for uphill truck lanes.

Caption title: Report on yarnell hill afterstudy.