Show E BETTER R ROADS el SAFE WIDTH OF HARD ROADS roads maket makes recommendation bureau gU reaU of public men aten dation clation of 18 feet to provide good clearance kroml pro Ml by tl tile avd states department of 0 eaga agriculture alture A minimum I 1 n 1 width I d ill of 18 feet for hard surface roads Is recommended hy by the bureau of public roads of the united states department of agriculture the maximum width of truck body generally permitted Is 8 feet and 1 5 sy feet Is the ordinary clo clearance arance od K A Tr traffic aftic on a 16 foot pave fave cavemen men width or of automobiles at an average speed of 30 miles an hour it is unreasonable to expect the drier 0 of an automobile to drive with the wheels heels closer than 1 feet to the ed edge of alie pavement says the bureau por for trucks at an average e speed of 15 in miles lies ao ac hour t this his distance should not he be les leax than 13 1 feet on account of the gres greaf width of tile rear wheel three feel seems to be a minimum safe anfe clearance cle arancA between bodies inasmuch as a tain amount of truck traffic grafl ic Is to bv br expected on all main country roads the minimum width of surface should fil be 18 feet to provide these clearances clearance aben an automobile meets a truck where the frequency with which trucks tracks pass each other becomes a ble big factor as ag in the neighborhood of large cities the minimum width of pavement pave meni should be 20 feet to a clear ance of 3 ath feet anil and a sate sa distance of wheels from edge of pa pavement ement |