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3 ‘II III-II. I ferggenfty¢wo State atalleneS_ I 1% 12 arts: gséght, &§I::::§arfite]y $031tir1§1ng $1333 9f par: i‘thinadgg
I . I 3 Te Tom th. S cOnt'm 9 Ca' nerafl a ead a c in .mdica ‘ en th
v: I II I pa3t°§IeghStat§siifffl sagsw (.1 cefilt‘éiuigo-Ias‘éigizqum 1112s: m; $239 15
. I; : Sight d' e ZOne added . Ughom if- direc- :, oes net Such ' f a . a r011d “11 6121
I IIII‘I 3 s lstanc ' ’ termin - S.trlpe o the 20 . t10mg, of not diff {is a Sin Strlpe ' . Dia
I II I 3331365 e Is 110 1 atmg It nly fOr t 116. Serum 1 . trav 1 erentl t gle Str' 111d1. gOI]
I3 ‘ and use 8‘ d0ub1 Onger r - at the - he fiI‘St ma 5 Ylmpair 6’ the u a e betw ‘Pe Onthe lane, 0ro<
.3 I continue 6, Stripe estI‘lcted 013011112 whe Y be devl ed andad' Sefuln«ass een 0Ppo' begum' in‘
I I3; IIII I I add a, COIN“,- us Strjpe 0f COmPOSed 3 f {311356 1 re 911 tang-en e 0ped_ Wh lsrespectf Of the 1‘ 5mg - h E
I III III .I I Dr yello mucus Stri the Same Of a bI‘Oke 0., 3 Is inadb '0 and Sight, _en, for e 01‘ restricti 0&4 Is mg 1" Ian
33 II“ -II I I I thrOu W. one S P6 of a dig 00101‘ and n Strlpe begi equate for ,dlstatnc Xample a hive stI’lpeS loflgltudi
. ih‘, ‘3 ~ = at, ghollt but ““9 use 8136113300103 - 7 State th n-Where th Passln 6 Over th 3 ghwa ‘ “0'Pa35'
I "n ‘ II I 3 the po' Chan S a d0ub1 r, elbher . s e 11111 - . e Slght, gt the Test . ,6 crest f m d‘ 1p
I I“ . :v 1, 1 One S mt where ' ges the Col e or tr' Whlte the 1‘5 1685 th dlstanc rlctlxre st . 0 a hfll IWers H
I II aw I but- tate uses Slghtdista 91‘ of the 3316 stripe SI - Crest Wher an a desir be f°r tram “PB Should tother“
I tI w , I 111 Some 3' COntin 1106 151101 Tlght St - I‘lpe $110 1 e the re d a 13 mim'm c approa ' but h 1g
3. ‘II‘ a I from Pases ind' “0115 do b Onger r - r1Pe Passin u d not a_ ahead um b Ghmg - S 011
II IIII I I St: - One (111' . mates th 11 le str' estncted g man restrl t Opens ’ ut be d mthe
II t rlpe. Th 803’'1011 b ’ eend 0f lpe thr0u h - PI‘GVent QUVerI A C. a, Vehll Up to Vi 37011 In 0p
3 ‘3‘ III 5 no-paSSin us of 32 sy a diagOn nO‘Passino g out appro Passmg b Sftl‘lpe h c e fr0m °‘-” the “1'1"
II: ‘ ‘II ‘ : g Z011 tattes ' a1 arrOW #3 length at - a‘chlng th y Vehlcle ’- OWBVer ' maklnga Where S"
a“ II . ‘ pO-mte the fe es on 2-1 “Smg st ' acres taln8d ‘3 c S m th ’ ls re uir In lg
I. W I at ane r1 .3 ,8 th . b rest, 6 o - q, edIo _GhooS
I I i 3‘. 3 3 fom? bey0nd ure- of a unid'pav‘?mentsp markings 113: reSmCtS pazs'the use of Both ObjeIép'OSlte dlrectio Which 3
I It I * ‘ght distant?” of ti: :3??? mafia: IhroushéisazdirtattsztgpInt WhicI t:
= w 53 n ' a n
:3. 3 III I : Jflo 1"lager ”A noistanpe is linfifintlnums stgi length of 521153101195 III?“ 9
13. III 3 hOd (343116 Toads) lap a nopfiisn-‘g Zone ffft' p6 on the sideewItoad mm1m‘ Brave]
, . II I 3 . . ‘ s r - e u
I II 3 I. ‘I 32 I ‘. S389“ Stripe 0 S OAI‘ there maslllg ZOne fol. tafiic In One diI' . T8 that thlj
I I I I I I eclal 3t!“ D center . tates 1 s y be a rafiic 1 60131011 t' .e.
. 3 I3 3 I ‘ SpeCial strgpe 0n (mute lIna—no Si _ traffiyst’em Of St - gap betw II the Oppo ' mfiy OVer- .We StmI
I '3‘I I I I 1 Zon es notlpes on laner-3'n*withggs'~--—- c m 0p . I‘lpmg W1,een the end Slte dll‘ection 1ssever
13333 i. I333 ' 3 normal Stripe Slgns__:::___ 3 continuo and gaps lichens natur erentiates b zones,
IIIIIIIII‘E I 9 Zone WOEfiI Stripe ’alon WWI brill? Will 81105133911 its
I3333|I3333 ‘3 #L 8 20th Si(has 3Wffir examplgslcifi to indicglg Stripe Withes: _L
I": 1 Sin Stri ___—___ Wo—l ere th ’ ave _e a n _ .
I III gle Cont' Pe we r0 6 n _ . a Con 0 passm
III I 23323161? stats migisnfs 33% I ° Passmt 203351133: Istrips ai
I III? II %* e It be— mads . a W as“
I “I3 3 3 L s the 511133103 mafia? Eistem oflinicgfplished 0 h
IQ‘IIJ I3 ‘3 B 3 . Signs‘indi —-__""--: 4 dle Ian elane beeo 130th dir r. g at, 110- BIG
"H -: 'I I eglnnm Cate— 4 C 3, hOW Ines 111 fi- ,ectlons f Passmg __
II“ .. 3 Beginning Enly (2 signs = ran b9 avoidefiver’ can bee ecuve- M mm Passing _‘
.: III-'3 . L: tgaaé 1“creased ghazard dmfi9dhefiectivii§°f “16111333 3‘3”»
1 III I 3 nning and TZone)"'--—--___ —— . c in 0 .y a s 18 ed ; COnfu' 40-“.
II ”II 3] 2" ‘24s: end, b ----____ ----_ 111 He (11 . yStem , ,_and -. 51011
I 3I3II II I am indicate no mm] H ”t not at all _z I) _n ____ 6 beéile OPPOSite 36.60101} to 0n%f18tr1pmg W‘figflfity of .the 50%
t 1'3 I «I 3 ‘ ““9 reads, es-— 3 501116 -1rect10n 3116 b c reStI'IGIS 60.
II" "I ‘3‘ 3 ' 4 of Operat' queStl0n r to “56 tw uh Permits
Ii-‘sti . 3 , ‘ 0n Whj 11101? Over th egarding th 0 laneS- Th mm ’°-----
$2 s g} en ' c Wldenin ecreStS’0 '6 m0“ d ' ere has ;
, , . a. gmeer g to f fh111 eSlrabl
" M3" ‘ S coMelld th our'lanes iss on Phree_1an e type ‘$=Le
*3’—_ at the delay 0110f, Justified 618mm or’IhBe‘EolII
” “Sad by slaw °m° mass-1;:
, 73w_7 -mov- andfio‘msl:

 < ,. _M, 1, . _, , _ . ,7, , , -2, . I, . ,7 . ,_ - _ ._ ,__.___N -2.
* ’ i i: “‘1 .l-
; t":
id. ‘
. v: :1
0120,11... mm... 1939 P U B L 1 C R 0A D‘S 191 1 :[l
)‘Passing 'WW . '7'”,v‘«..;. , , ,r :0, '05)." »,__/ , ‘~ ,. :‘511fiiii
preview 1‘ “9' w"? . :4 ' 5 ‘ ,‘é.r".'{"‘i.”,1'7 & ‘ ,; lSl:
‘ W:~mi "7',»,*/V;¢ w." he,” ‘ , , , I 'C "" ' i' if HM
m three ' 7W " 1 , .1 , it}:
assingin ' 2%; j; I y W '
' . .. ,, “7“?1'8’011‘1‘ N '2 ”it ’ 0” 1"; '2 ‘ '. , m 1' ' . i. if
me an ‘ $71223; ,, 13¢, ’ . . /‘ .. .1 h
u Pad ' . , ’3’ ’1’ Ire; 5' 1 ,1 1‘51?
0r_more 7 f ,, ’ , , .9 . ~ , ‘1 ,1 *1.“ . .1: .1
es 111 the ' ' ‘ " 5' U , 7"“ ' “I" 6.221812%} 5'. V 5 ii iii.
. VIEW TAKEN FROM CREST 0E HILL. NON—DIRECTIONAL MARK' 1’ g i» , _ , M] , , i: All
[1 80110118 ma RESTRICTS PASSING DESPITE ADEQUATE SIGHT DISTANCE. ' 1'5' M2 .773," .37. . M
1116 A330 ’ .‘I * 05/ H 1.1.08 we; 07,.; ./,, r 1 l: 1 7
. . . . u ’ , WWW ' ‘ “'1‘
ing trucks gomg uphill should be aVOIded by reservmg ‘ 72‘7”” , , . g , " “l ‘
:PAimni two lanes for upgrade traffic. From the standpomt of ”/7"- ‘ , , 7 1' il
s1ght CllSl’I'anCB thls System 13 hazardous 11} that 1‘3 encour' THREE-LANE HIGHWAY MARKED To RESTRICT TRAFFIC To Two 7' if:
. ages passmg when the Slghl} distance IS llmlted. Traffic LANEs OVER THE CREST or A HILL WHERE SIGHT DISTANCE :1".
. and the should be confined to the rlght lane when Sight distance FOR UP-HILL TRAFFIC Is RESTRICTED. SUCH NON-DIREC- ; '1 i
Ofn Ad— is inadequate for passmg Just as on two—lane roads. 7533;50“3,113,319.AgNgggggjggmsgagEgglgggcfgggfiIg ., ,1»:
0 a1, _ . . . - r .h
hid? it When the road ahead opens up 13,0 View, the restrlction ING, THUS ENCOURAGING DISREGARD FOR RESTRICTIVE LINE . lll'
i' 011 ‘ should be terminated and passmg permitted on the AND PASSING, AS SHOWN. ‘ 2', {l l
uecuonl middle lane. - ' - - - SIGHT DISTANCE FOR STRIPING DEPENDS ON DESIGN SPEED 1 ll
I1 9; P011 Diagonal striping should be pr0v1ded In the middle , l l,
1P6 mdl‘ lane, crossmg from the_inSIde_ of the left “lane to the The deSIrable minimum sight distance on which to 1 112":
p0 011 the begmnlng of the restrictive striping on the inSide of the base restrictive striping for a two- or three-lane road
OPPOEmB right lane. The diagonal striping should meet the lies between the minimum passmg sight distance used :' , ll
roa_ 15 longitudinal restrictive striping at the beginning of the iii des1gn and a Sight distance of no appreciable length. 1 ‘1‘: l
“:15th no-passing zone. The diagonal striping should inform The former is on the Side of safety If the line is respected ; ,1 3,.
.g fWfi'Dhillls drivers in one direction of the necess1ty_of movmg over but restricts the use of the road. The latter is highly . i
0 fl mid to the right lane Without crossing the diagonal striping hazardous but permits passmg at will so that even if a , :1 ‘ 3 3
.36 S 0. but should not restrict crossmg by vehicles traveling driver sees only enough of the road ahead to pass a ' ."¢:,:-
afgachmg in the opp_os1te direction. . _ vehicle practically standing still in the face of opposing = : 3:1
- , eyond In striping a highway to restrict passmg of vehicles traffic traveling at a very lOW speed he is not deterred 1:1: ,
V112; the where Sight distance is inadequate the general concept by a restrictive stripe. 13".‘1':
na_ g 3 in choosmg factors to determine Sight distance below The Sight distance for striping as finally recommended , 1:71;
11$“?le which passing should be restricted is totally different in the second column of table 5 is a compromise based 1:57:31
new? from that in. choosmg factors to determine Sight dis- on a passmg maneuver such that the frequency of - 31:17:“
mayhili hence to des1gn a highway. 1f the same factors are maneuvers enabling passmg where Sight distances are [1: 'l
ng th chosen and a highway is striped to restrict passmg shorter is not great enough to impair seriously the ' lit:
Yihsuc a3 Wherever the Sight distance 1S less than the passmg usefulness of the road. Note that the sight distance 51:17!
'3 e if” mm1mum, and almost all drivers accept the dictum for striping varies and 1s dependent on the des1gn speed. 1 137’ i
1 e W 9” that the are re uired to kee to the ri ht of a restric— The dam n s eed is one Which Is reater than that used ‘ El :5 l
tlve stripe throughout Its length, the use of the highway by almost all drivers on any particular road or section 0', fly. ,l
[121%, Dill); lS severely impaired. of road when traffic is not heavy enough to impede « W:
1 H60 1 g ; J :5
the zones. 1‘ i'l'll
‘ bettllfieen TABLE 5.—Relation of limits of no—passing zones to the point of intersection of vertical curves for purpose of marking pavements ,3 1::
now 951 _—________—____’_.___._._———————-——————— '1‘ .1,
1e With a Mini- l 5:“ iil
10-p8.SSlIlg 1:331; Value of algebraic difference of grades, percent + 100 !‘
stripe 01 Des: M ,1 1. ) fight‘ig' #-_.___fl______.____————-——__ ~ :1?
Knspee miles or our ance or i' --5
rlap on 1 p marking 0.04 0.00 l 0.08 0.10 0.12 0.14 0.10 2,;
ave- _____-____________________,__,___—_______________. 1':‘
l1 IIIJIentS 1.1::
ed 01119 (feet) A1 B2 A B A B A B A B A i 13 A B 17,:
iO—piissmg “h._______._____,_________________.__._______.____._._____ ;':
I 330 390 420 440 460 490 510 l l
itfiasffnlldi 30 50° 40 {—170 } 16° —110 20° —80 } 28° { ~60 } 34° —40 } 39° { —10 } 42° 10 1
e . 40 600 180 _‘{§3 } 310 $33 410 333 } 525 338 } 630 633 } 740 623 } 930 1% .‘ 1‘
0011mm“ so 620 700 790 860 940 1 020 1 080 11‘ 1
ity of the 80° 320 31533 } 50° 11,23 } “3° {138 } 35° 1223 i110” :1 £33 }1.200 {25413 }"36° 1333 2‘; :1
h restricts :0 1.000 600 {$33 } 930 {1333 1.250 £133 }1.530 1'33?) }1.880 '40., }2.160 { ’54.. }2.500 { ’er a. ::
3ft]: 1113: ° 1.200 980 4.40 }1.480 '12. }.1:970 '34.. PM { ’5... III: :::::::: :::::::: :::::::: :::::::: :::::::: a f,
ere \______________._____——————____________.__._._M ; :?
rable type 151:1113118111 of vertical curve resulting in minimum sight distance permitted in design. _ _ , I 53'
13.. . . . . . . . .
lane roads olth —H0rizont81 distance from the point of intersection of vertical curve to limits of no-passmg zone. The upper figure in each case 15 the distance in feet to the beginning 1:.
1h 9 “O'Dming zone. The lower figure 18 the distance to the end of the no-passing zone. When the lower figure is a minus value the end of the zone is on the near side of .
3d Somt ”mint of intersection. the length of the no-passlng zonehthe difference between the two figures,and thereuagap between the ends of no-psusing zonesinopposite direc- -’ :,
' _ 31°33- When the lower figure is a plus value the and of the zone is on the far side of the point of intersection, the length of the Inc-passing zone the sum 01’ the two figures, 5
SIOW-mov 1' “00358111: zones in opposite directions overlap. . .‘ ".
, f j :1:
1 iii
‘ .. .11
1i
. ; ,1 ’ :

 1111‘ 1 ' » ~ ,

I. "11; 2 ,2 7

'1‘ 1 1111 '1 .712; 7:. w

1111.11 "

1311111 192 , ,

1‘ j1 ‘ 11 11 ‘ :Ianloohth OperatiOn It is I C R 0A D S

‘1‘ ‘1 111: l c aTELCteristicé of gOVerned 131‘" l
111 1 1i ; 11 t be b -

1 1 0.6:.0666-1-010s: {3.6.6.6 61166 .. as; 2:036:66 1...... m. 1. ........
1 ‘11‘11 ; markinzpizeg: tléan built-up 2:23:11 Sgaces encourzglillll: gshides Whig}: (111161—1131??de by the prob bl /'
Se onh‘ - ‘iht‘ f eth - {L610

‘111 11 11 . abgl‘glggssgad surfaCeelgéltthogeeiie ind fileigfiffingfijifi Aefdsfgigighsfgssengeruvsehlih‘fg up ’ allomglgnhliofi 0‘ the cen
1 1 ‘1, 1 by det , g zones on an . _g 15 feet, all intersect “P6 on a thre 1' and conspi
1 ‘ 1' '1 ' ermmmg th ‘ emstma TOad la ' - 101‘ normall e- ane road a . t e a
‘1 11:1 :6. 21.26;.- ...... write .2666 16 1116.36.33 2:165:66 flatter66.66661121361252611166661 06:13-11. 1119666111
11 1 11 1 ‘ ‘ ' 111 egmnin C 1011 . 8- hi - a ocat' - l ‘
1, 1, 11 1 these .g Z0116 are 100 g and end f aPPI'OELchm _ S markln ‘ _10n Wlth IS the non
1. 1 . . 1 . POInts co ated_ The . , 0 each . g the Hit . g Selves tol shor: -
1 .‘ -1 1 dlst - I“331301st t - . Slght d1 t vethlesl _ersect10n .1116 up V 11- lfllOWn. ,
11 1 ‘ l‘ 1. 1 once i0r marki 0 the minim s. 961109 at t b eavlng the lnt . and permlt .6 101%: 1‘ .
‘ 1 ' '1 11 1‘ relatlvdy Sim Hg, The method um PaSSmg Sight 0 e Stopped h er§BCtlon_ If V his PQISSmgh sripe, 6.“
‘1 ‘ 1:1 1 1 ‘ An 'd _ple and are not d‘ S 0f measurem l7116 restrict‘ ’ OWGVer’ 113 ma b e_ 0165 are lik 1 broken m
11 .1 ,1 1 1 crest 1 ea 0f the locatio lScussed in thi em “1'8 If sto - 1.VeStnpeOii th y 9 desuable t 9‘: to be the]
11- -1;1. : 1, 1 . _ . . Ppmg ls ff 6 Cehter 11 o loci:
:1 11-11- 1 1 1 100a $ Can be Obtam d n Of no P3155111 S report, It m e ‘30th b . ne 0f the e To be
11 1. 1 1-. t10n f . e from tabl g Z0nes at bill .6136 be desi b yCOIitmuOu t ,PWement
11 11111 1 -1 ion or Variou . e 5 which , 011111; - _I‘a le to us S I‘afific 11 h ' from the
1 1 gths of - S changes Shows th restncmv - 9 only norm 1 g tcont:
1, 111:: 1 minim .Vertlcal cur m grade fOr h' 811' aCcom 1' e S"11'1pes alto 91 1fine Stri 0 preferably
1 11;: . 11m Slght distan V6 are those I .W “911 the 1“?th When th - gather, Pa ' peg and til T
i . 1. c - . eSult and tr - . e 11 h - 553m 0 52 h‘
5 11'1‘ 1 ‘ RESTRICTIVE srm e permtted ”1 (lGSignmg m the tWo 1331: iii) 233101113 alongg E111:: rgd'gflnalf i‘ghg‘ gigging: effective ‘
1‘11 i ‘1 PE N ' . ' ' re m '
'~ 1111' 1‘: . 11. .. ...-.... .. .. has 1.... .. .366606. 6.6.1 1.. tamed 0.3.265:
1 31111111: 1. sectlon On two 6 that vehicles a . DE have t eCt10n.s, OPPOSing tr iii 9 IS eVenly divisdorage Where th‘
1 111-11 7‘. “ 1 and that all 8: find tlime-lane rogfi’machlng an inter- heav Ohfree 1tself on the a c-m the middle 1a 6le auxiliary:
:- 11 ‘1 .......g 5.620653616161111... was? .. 0...... 2.1.6.6? 65.666. 1111... new m...-
11.111“ 1 an mterSect‘ . ersection P . completed b eff PIS fictive t' 1111 a aimed 1‘ are solid
1: 11 :1 1_ - Ion ls h - assm hil . e- . ect of prowd- S rlpes ma h and th . 1
. 11.1 1 . 1 V_ehlcle m5L b azardOuS bec g w e Crossm 1110n d' . 111g two lan y We the d - ‘ Included 1
1‘ 11‘1" .; fight (2) y 0 “met the vie “Se (1) The 6 r 6 ll”66661011. A. 66 for storage and 83166616 Iti
-. 1‘ 11 1 th I . the Passed hi W of the 01105 PELSsed 0ads may be . 1mp0rtant into . movemem 5. q
1- - :11 1 1 .e passm - V6 cle m S road to th strl W1dened t f I‘Sectlons t