Tons One-horse wagon, loaded, 0.88; unloaded 0.28 Two-horse wagon, loaded, 1.57; unloaded 0.47 Four-horse wagon, loaded; 3.88; unloaded 0.54 Pleasure vehicles, one-horse, 0.28; two-horse 0.47 Rubber-tired pleasure vehicle 0.28 Saddle horse 0.50 Motor cycle 0.20 Excessively heavy vehicle 3.94 Motor, runabout, 1.68, touring car 2.00 Motor dray, loaded, 2.43; unloaded 1.23 Draught horses 0.50 In a traffic census taken by the Borough of Brooklyn, New York, the weights were reduced to traffic units per minute per foot width of roadway which was called density. By this rule, “the number of vehicles passing a given point in eight hours times the traffic unit divided by 8 times 60 times the width of the roadway equals the density.” The weights and traffic units used were: Weight in Traffic Rubber-tired vehicles tons value Large automobile trucks, loaded 9 5 Large automobile trucks, empty 4 4 Small automobile trucks, loaded 3 3 Small automobile trucks, empty 1¹⁄₂ 2 Pleasure automobiles 1³⁄₄ 1 Carriages 2 2 Steel-tired vehicles ranged in weight from 1 to 7¹⁄₂ tons and in traffic value from 2 to 10. A suggested form for a traffic census sheet presented by a committee appointed to study the question of traffic censuses to the New Jersey State Association of Roads is shown on p. 245. This sheet also bears, for the use of the office, blanks for the tabulation of the traffic by classes: -------------------------+-----+------+------------ Kind of Vehicle | No. |Weight|Vehicle-Tons -------------------------+-----+------+------------ Motor cycle |.....| 0.25| .......... Light-horse, empty |.....| 1.25| .......... Light-horse, loaded |.....| 2.00| .......... Heavy two-horse, empty |.....| 3.20| .......... Heavy two-horse, loaded |.....| 6.00| .......... Light pleasure motor car |.....| 1.50| .......... Heavy pleasure motor car |.....| 2.50| .......... Light motor truck, empty |.....| 1.00| .......... Light motor truck, loaded|.....| 2.50| .......... Heavy motor truck, empty |.....| 5.00| .......... Heavy motor truck, loaded|.....| 10.50| .......... Specials: 10 tons |.....| .....| .......... 15 tons |.....| .....| .......... Over 15 tons |.....| .....| .......... Total |.....| .....| .......... -------------------------+-----+------+------------ Tonnage per foot width of pavement ............... Tonnage per foot width of roadway ...............