La Junta tribune., 1912-07-06


Dr-r.
chimes owned 10 the United States. and
I the number Is increa sing At . marvel
Gus rate
The fact that must give u couceru
II that the old methods Of construct lou
which have stood every test for nor.
than 100 years are inadequate to uieei
the conditions OF this n.w form Of traf
&c and that we are In the midst u a
transition period which must even lal-
ly revolutlonlxe the science and a. Of
the road builder The hirhwsy en-
gine~r OF today Is called upon to asc-f
tain In what way In. su,.snoblI- 10
jur.s III. rad whs, IL th.. exact csuS-
OF the injury. and nnsiiy TO drvi-- an
adequate remedy
ssgin~er. made hi r-por, 10 q. ,Aun
4 ell of bridges aud roads In iI.b ~
forth III" priu,ipi.- ~ -on-i M. SSOs,
which. ~ modified aud sdh-l 10 nv
John I. Nncadsm Ia the -ariy r,srs Of
the niD-i'~nih century. have tSovesi
1b.>. great road builder. sud tb<ir
suc-~->or, sought tn secure q raad a.
psbI~ Of ~i,h,taBdiny the wear Of iron
Tired horse drawn vehicles '0f th< soO
tor driven vehicle. had no plsce in
their philosophy They worked upon
the theory that the dust sbraded frou'
the crushed stone wound on 10. voId>
between th. angular fragments aud
when wet serve ~ n cement tL~feb,
making ia. road surface praa ticslly a.
monO.iih The iron >bol hor~~s sSd
the iron tired wheel. passing over ih..
road from tim. to tim. wcr, de,s.nds-si
upon /" ~~nr or y sufiei.ni mount Uf
r"k dust Ia r-plsc. that cafri~d away
by Wind AMI water and thI, under the
srtiou VI moi-trr. r.-'~uent.d thereby
automatically renewing ID. LooA of tb..
road surface
The rubber Tired Nh~.ls moving NJ
excessive .i~sd. fall To pfu.iure a.,
new dust from the r~k but the tr'-
m-ndous sbcar1bg ~r-t of tu~ driving
wheels .oo.-hs this dust. nd as the
.
volume OF sit The dr'. t,,i currents
carry the rrk dust on ihs rosd there,
hy er-'tinr . permanent io>s Of the sIl
essential binder u fU..o~s ihst sb'
rad j. svin stripped ~ t, nn- bud
ins mai.r,gl exposing th. upper "
wearing eonr~" OF ia. siup~ Tb<~s
stones robi-d of VI. h,udiug msteFisl
are soon is-,-.o-d nv ID. hear Of ~
driving wheels. leaving III. ro~d ssndly
rav-l-d W dis,nt-grnisd u h. q
course. apparent That ~. effects Dc
~"rib"d ar" greatly intenn1ded ~
CURVES. where sk,'ld,ns i p0-t NJ
Qa.pt
Highway AMI mechanical sngineeS'
hsre given mufh study to The arttou o'
The automobile on ih- road suffsce
aud mapy Ingenious theories hxve be~'
advanced While II j. tr,s~ thss tn
shipping ~ The iir~. -kiujine. nhsl~ I"
~. cnf hody. suction Of the paseostt
tires. MI ronitlbut. To pr,siucs TIE ~
. fs-'i. the mo-' conclusive ssprr'us~nti
seem To ~nrrnni the as..rfiou sbss ~
great truct!,- for,. ~ .t,eAs eSeTses
by the driving wheel. " infesresS v
the niain factor OF Injury
4 -'.ris~ ~ tests condu~te6 ~ -
Unitssi Htais- once Of pulsr eooos u
1MA Ir,siu~d ~'sn~ lni-rs~alug ssreW'
ssouH 'hi. Iiuv, Car. Of ,nHous wesees'
. Esd tyis- were run o,~r . sesssesss
, eour.s ~ didetvnt rates - Twse ~
4 rsshs angie photograph. satsu ~ se'''
4 Pun a sssty horsepower sps ssssepe'
!. soe ss~inR. weisAias ~teo ~ o55ve
!. and mechsnIrian sbout 1jaw peeee'
wss dtvsn "vsr this .,rss,b ~ ~ .
ssses os spssd varying frvw ne - -
y "''ss ~ h'ar. the s,ss1 tseoe y
ssvsssd evs mIle- i~r hsns ~ -
e trsp "tss ~ Nasd. rp teialssss ~
% eoss astk ~ M ~6~4 ~ eaeosrs'
Z - shs Fssd. hst srse tWseey - 8
u e"as ~ s6ert was ssrettae veee -
y 'errssse IN si~s-d. Thpp 1p0s ~
S)1D0u LINN ~ thaa HIT. - - r ~