A volume warrant for urban stop signs
By: [by] Morton S. Raff assisted by Jack W. Hart; edited and published by the Eno foundation for Highway Traffic Control.
Contributors: Eno Foundation for Highway Traffic Control.; Yale University. Bureau of Highway Traffic.
Publisher: eno foundation for highway traffic control
Published: 1950
Place of publication: Saugatuck, Conn
Language: eng
Number of pages: 121
Subjects: Traffic regulations.; Traffic surveys.
Notes: Bibliography: p. 119.
"Prepared...as a joint research project of the Bureau of Highway Traffic, Yale University and the Eno Foundation."