United States Department of Transportation
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Abstract:The research study described in the following pages was undertaken to determine the actual speed of vehicles on Connecticut Highways. It was 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. The same stations and key-points were used in this survey as in the survey of ten years before, and in general the same data were obtained. Certain additions were made to the program for the 1934 survey, and the project of the determination of vehicle speeds was one of them. For the speed survey Yale University joined the two agencies mentioned above to carry out the study. The observations recorded were made on 117 days from November 14, 1933 to September 26, 1934. A total of 91,044 vehicles was observed, the average of all observed speeds being 38.9 miles per hour. This total includes 3,834 cars which were observed in two special studies; one at a long curve near Madison, the other at a railroad grade crossing in North Haven. These special studies are described in detail in the Appendix. The lowest speed measured was 9 miles per hour for a heavy truck on June 19 at station 63, on a wet pavement. The highest speed, 80 miles per hour, was twice observed, once in Meriden on June 21, and again in Saybrook on July 4. Both were passenger cars.
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