Show GET RID OF DUST ON ROADS one of the most important problems t to confront highway engineers two methods suggested IK T L TT the most important problem which has hag confronted highway engineers eng incera in recent beirs irs is the retting getting rid of the dust on roads not until the introduce Intro duc tion of motor chicles ho however mever did this become a fictor of sufficient buffi clent tin im por tinco to engage the serious cr ious con of road builders and road users urs fast motor tr triffle effic has reached such proportions at the pre present ent time as to shorten the life of 0 our most calef care tull u 11 constructed ind N 1 ai 4 in N 4 dust raised by automobile traveling at high speed anai macadam adain roads to a great extent and to I 1 beep them in a loose and uneven condition tile the macadie road his has been de deel el aped with mith the object in nien ev ot of with mith Et rt anding the wear of iron tired horse vehicles ehi cles and it has met stull the demands of suburban ind rural traffic until the advent adient of the automobile lien hen in it highest state of 0 perfection the rock from which such a road is made is so suited to the volume and character of 0 traffic which ellich passes oner it that an amount of 0 dust is worn off ell to replace that removed b bi wind ind and ram rain the remaining should be just enough to bond the surface stones of the road thoroughly forming a smooth imperious shell A road of this char acter wears uniform under the trade for which it was nas designed andal and always presents in eien een surface hen such buch a road is subjected td to automobile traffic entirely n nw nn N coa art arc brought about the pow traul rue rat live force exerted by the dm lag wheels of automobiles soon disintegrates tho the road surface the tine fine dust which alch ordin aril acts as a cementing agent is thrown throan into the air and carried off b wind ind or is earll mashed cashed off b rains the pneumatic rubber tires m wear ear off little or no dust to replace that removed bi natural agencies the result Is that the composing the road become loosa loos and roll rounded ahing the greatest resist ince ance to traction and water la Is al allowed loved to make its wa ma freel to the faunda tion of the road many remedies have been suggested and tried for meting meeting this nev nen condl von ton but a perfectly satisfactory lien ot of the problem Is still to be found isomo some success has attended the efforts of those who ulio hae bae sought to find a cure curc tor for the evil and this Is encourage ing aarn the man difficulties to bo be o overcome in ili the treatment of thou sands of miles of roadway are con eldered it is apparent that this lem can be solved only bi the adap tion alon of one or two general methods 1 B T constructing roads in such a la 14 7 47 1 A P 7 4 V 1 fc Q road treated with one application of an oil emulsion automobile traveling at rate of 40 mites miles an hour with no dust resulting manner and nith alth such buch materials as to reduce to a minimum the formation of dust and 2 by tra treating ting the sur bur facts facia of existing roads with materials tint that will give the bilat debult among the mat materials trials which ha hae e been if 11 plied mith a ath some success to the finished road surface without the agency ol of water mater the mineral oils and coal tar are arc undoubtedly the most important |