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Motor vehicle speeds on Connecticut highways
51 pages : 6 plates, folded map, 3 folded tables, diagrams
by Charles J. Tilden, assisted by Daniel Luzon Morris, Thomas M. C. Martin and Ericson W. Russell.
"Research study ... made in connection with a general survey of highway traffic in the state, carried on jointly by the United States Bureau of public roads and the Connecticut State highway department. The prime object of this joint survey was to bring up to date a similar study by the same two agencies which had been made in 1924 ... For the speed study Yale university joined the two agencies mentioned above to carry out the study."--introduction.