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Ta'c i;3 :._. cf'oc::vo roadbed sc:i roSiiiAnt mUd:,.ua values. i,7, ;psi), ;hat m, y ba used in
<br />the doclnn of `.!a~i:;le pavements for Invrvowc:;u roada. Suggested vaiuus
<br />deconn cn tha U.S. climatic racicn and:ho rclsu•ro cualiry of'he rcadh^d scii.
<br />I•
<br />I 2.°_'..,C' 3,'CC J.C'yJ G,2G0 4.E00
<br />u 2.700 3.aC0 ~.S~O 5.=C0 7,2Cv
<br />III 2.; C0 3.000 4.CC`J .:,.:00 E.7C0
<br />IV 3,200 a,100 S.ECO 7._00 11.700
<br />V 3.?CO 3.iCJ = 'CO S.OC/J 2?CO
<br />vt Z.ECO s.'ro - .0 a,CO S,iCO
<br />Ro!~tive Cua:irf c: Roac~ed 3cc:
<br />U. S.
<br />Climatic
<br />R ay:on `Ivry ?tor Poor ,,=sir C~ucd `aery ^-,ood
<br />crec..:~e s-.cert. :cmres rr, a:
<br />`~
<br />__. __ .T_ .:^_d'.t:.a3 Of i.e :43IIbC SCtl 'a_. _.Q^.~Q :~.'
<br />.._.._...' O _...._.: Ce:'i^S SuD111~. an:..c as 1:. .._a Oi
<br />-::c primary des:~ _^_atire-cats for a~~c3aco-
<br />v,_^aud roads (17) include:
<br />(i) the predicted future traffic, wl$ (Section
<br />2.1.2), for the pericd,
<br />(2) the lengths of the sensors (Sccion 2.3.1; or
<br />criteria in'ec:iun 4.1.1 may be used if better
<br />informatics is not available),
<br />(3) seasonal resilient moduli of the roadbed soil
<br />(Scc:ion 2.3.1 or general criteria in Serion
<br />4. I.1 ma}• be used if better intormation is rot
<br />a~ailablc),
<br />N) clastic Todc!us, EIS (psi), of at_: c_atc bast
<br />lase-, (Scc:ion 2.3.3),
<br />,.°) elastic rr.cdc!cs. E`,. ^si!, oC _p~rc_^_:c
<br />~: ~ ,~iaCn `C:\:: C:: JIII:f L',s. :. I'_i I-`.=-::: X111
<br />_. _. ! 1,
<br />O 11!Ja'ablr racist. RD (inchc,), in suL_e
<br />la}cr (Scct:on :.'.=). Ind
<br />
<br />T,:rso Ce£:1 L"'ln^JW=r.G ^re :SCa _. .:wJu1C• T
<br />':.l i.. L:e CC a:1:3C nat ._...,_ `Il 3b~~ ~:.~ :130 Lie
<br />dcst~sco~ -aphssor:::;-.:.^_^bi:':(~,rar4.2)and
<br />rat'_ag (F:=-.:e:.3). ~.a csamp!e o: the application ct
<br />_.vi1 s:cis of ti3is prcr_dw:e is urr.,cated in Table
<br />4.5.
<br />S[epl: Seic^.lour!e•:ekofaggrczatebasetltie'tncss,
<br />D,$S, •+'bich snnuld bound ehe probable solution. For
<br />thts, :cur separate tabies, identical to Table 4.~?, should
<br />beoreca:cd. Entc: each ofthciourtrialbasethie..mess,
<br />DeS, is the ecpr, left-nand corner of each of Lhe four
<br />tables (Dys = 8 inches is used in the e.•tampfe).
<br />Step 2: En:crehedcsienser:ieeabilirylossas~re!las
<br />the ai!owabk ru:;ing is the acpropria:e boxes of each
<br />of the tour tabics.
<br />Srr_^ ?: E ::cr the approcriatc seasonal raiiicnc
<br />(^ _sutl ^oduii ci :!:ccoadbcd(\t~,)asdtheae~ ea!e
<br />cssc r..a:::iu:. ~ .. lpsi), in Culura:;s ~ acd 3, res-:c-
<br />_,
<br />ucriy. ui -f ~oic ;.-. Tb:: ease mc~c:cs t~a:'.:es r...}' cc
<br />p: n~ .,;u: ....., ..._ .__,...... ,,...,i a:,:~ of _ ..._..-. ±
<br />..
<br />snt: .l'd ~•.•:_ :: it^. rt. ~.: ::~.; :'.. .4 iU^.!1::: `. ll__ Jt :~~).tiJ7
<br />...~ ci s.:abu,c ct:_tc:c: lr.r.:.:: ~.~~,~,.
<br />p:an~c _omr_i::c:.1 .:gsin>t t':_ ca3lrc:: r.:;^:a! .^.., s:urs
<br />cf[cca 1.
<br />
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