6 
ing, which is likely to be confined to city pavements. These fy 
sizes are: } 
(1) One-horse wagon having a gross load capacity of 2,000 pound 
and a skein from 24 to 23 inches. 
(2) Light two-horse wagon with a skein Ree 24 inches Bs 
and a gross carrying capacity of 3,500 pounds. 
(8) Medium two-horse wagon “AR a skein not exceeding 3 inches 
and designed for a gross load of 4,500 pounds. 
(4) Standard two-horse wagon with a skein of 34 inches and | Q 
eross carrying capacity of 6,800 pounds. 7 
(5) Heavy two-horse wagon having a skein of 34 inches and gross 
load capacity of 7,500 pounds. . 
As there is cher eanes difference in the practice of manufacturer 
regarding the size of skein used on the various types of wagons, it i 
recommended that wagons be not designated by size of skein bu 
according to the gross load capacity, and that a name be adopteé 
for each of the sizes. It is further recommended that the gross carry- 
ing capacity of the wagon be shown by stencil or plate on the bad 
of the rear,axle. The following widths of tire are recommended fo 
each size of wagon, based on road-roller weights and on results o: 
traction tests conducted by the Office of Public Roads and Rura | 
Engineering: 
Width of tire recommended for wagons of different carrying capacities. 
Gross a . 
Type of wagon. © weight, | Widthof 
loaded. tire. : 
IEINGENS WHEW 6 5535 seb ssoosbossens6 abe 555500555 3c05e8- 5+ So tahoe ake eerste 2; 
(PUDIDF ASN Oe) Wee AS 55a Sass sen o 558 sea dooosese teense sesor sc tes esse zesess 3,500 
Medaumi2*horse wagons. Sc cee aoe tes eke ce sek Baye oe see eee apes 4,500 
Dlandard)2-horsewwazOlen on eece ace oe nomen ene eee eae eee eee eee Eee 6, 800 
Cav ye2-MOLSChWaACOle hes meee enone cece os leanne sala seme nee ee een cree 7,500 
WASHINGTON : GOVERNMENT PRINTING OFFICH : 191 
