r;e:" CIYil £KGil;[ERIMG;?~I

lIBRARY

TRAFFIC SPEED REPORT No. 90

CIVIL Ui&JhHlllht

01.5/LIBRARY

JUNE 1913 - MJMBER II

w. LAW

G. It STAFFORD

W.8. LUTTRELL

TUfflC SPEED U-PORT SO. '0

ro, ,. •• IIcl.au,hlln. Director ,~.". I,nJoint lII,h..ay bnnch ProjeCt

File: • - 3' lFROM: ... ,. Michael • A••oclate Director

Joint III,h"ay Resench Project Project: C·J6·IOC

The attached Pro,re •• Report So. '0 on Trarrlc Sp.cd.is the repon or tile un .tudY or rrce-n .... l.II, aut...ohile0.01 t ....ck .p.ed. on runl. tan,cnt. lewel ncUo". or Inter'Hate. 4-10"• .,,01 2-lane Iti,h..ay. In Indiana. The reportha. b••n pr.pared by IIr. W. I. I.." •• Gradu.t. In. true torIn l •••• rch on our starr. under tile direction or Profe••orII. L. Michael. The dau "ere collect.d by '!e.sts. C. I.SUfford and W. II. Luttrell or our .uff.

Th. re.ult. Indicate an Incrca.c or 0.]] ~ph In thcay"ralC .peed of all pa••enger c.r. and an Incrc.se or D.".plt fa.- heavy truch to that or thc I'll .tudy. A .i.plcIIn.n repr.ssion analy.l. oycr the hst clewen years (1'62­7Zj indic.ted that there ha. been an '"crea.ln, trend In.peed ror oo.t ela•• lrieation. or yehiele. a,,01 hi,h..ay. orbet..cen O.S and 1.0 "I'h per ye.r. Speed. yalues ror tit. pastre.. years. Ito....cr. Ind.lcatc tltat thc 'nerea.ln, t.-end isless today th.. it ..as fiwe or .1" years a,o.

ropl", of tltl. report are re~ue.ted for relea.e to thcIndiana State Police. the Indiana Traffic Safety Council andthe Indiana Office of Tnfflc Sarety as a no...al procedureror these reporc •. Coplc. will also be sent to the fcder~l

IU,h..ay Ad.l.nlstration and seYeral depart.ents .. I thin theISIIC. The repon i. presented for the record and for releaseas noted.

Respectfully .UIlbitud.

# 4/4P~"""III.M'_ Harold ,. Mlt:hael

Associate nirector

cC: •• ,. Dolch •• ,. Hayes ,. •• Scholer•• ,. Eslte.. e •• Loycll •• •• Scott•• ... CoUt ,. •• Marlts ,. •• Spooner•• ,. Cun..lller •• ,. Miles •• •• Steinke"",. •• lIailock ,. •• Millcr ... ••

,. Walsh

•• ... Harrell ,. ,. Saturly •• ,. Yoder

TRAFFIC SPEED REPORT NO. 90

>,

lI'inl·J::vonl La..Graduate Instruetor in Researeh

Ceorle J::. StarrordTr.rrie Enlineerinl Teehnieian

~.

Bronson LuttrellInstruaents Teehnieian

File No.: S-l·l

Projeet No.: C-36'lOC

Purdue thIiversityLarayette, lndi ....

June 13. 1971

Digilized by the Internet Archivein 2011 with funding from

LYRASIS members and Sloan Foundation; Indiana Department of Transportation

htlp:lfwww.archive.orgldetailsllrafficspeedrepo90Iaww

ABSTRACT

This report is the annual continuing study of speeds

of vehicles on runl Indiana lIighways. Observations of

spot speeds were taken on Interstate, four-lane, and two­

lane high ... ays throughout the state during the ~onths of

June, July and August 1972.

Analysis of the speeds sho...ed the overall average speed

for passenger Cars "'as 65.20 ..iles per hour. The overall

aver.ge speed for heavy trucks .... s 57.56 miles per hour.

This was 0.33 mph mOTe for passenger cars and 0.79 mph more

for trucks than sillilar data given for 1971 at the $3l1e

locations (except for station 10 ...hich had been shifted 0.8

111le north...ard).

Sillple linear repression analysis sho... s an overall 0.75

..ph increase of speed for all classification of vehicles and

high... ays over the last 11 years. This trend is a bit less

than that of a ten year period cnding five or six years ago

and appears to result frolll a "leveling-off" of lIlaximulll speeds

in recent years.

(See Figure A)

Interstlte Highways

'-' lIiles south of Junction " "LO .ile west 0' Junction " '"LO mile east 0' Junction 0' Post Road

,"S miles north of Junction of SR 16.

Four Lane High~ays

'-' .,ites south of Junction of SR "L. mile east of Junction of " "LO mile north of South Junction 0' "

,LO mile ~est 0< Klondike

"0 Lane IliShwlYS

LS ,.ites east of Junction 0' 1- 69

'-' .. ites south 0' Chalmers

,.. .,11es south 0' Rochester.. , Illi 1... west of Americus

9. U.S. 15

10. B.R. 41

11. U.S. 31

12. S.R. 25

TRAFFIC SPHD REPORT NO. 90

This report is an analysis of spot speed observations .

• ade durint June. July and August 1972. All observations

~ere .ade of free-flo~ing vehicles on level, tangent sections

of rural hith~ays during daylight and under favorable condi­

tions. The Sa"e locations On selected Federal and State

highways as used in 1971 were used again e~cept for Station

10, which has been .oved 0.8 .iles northward to as eQuivalent

a site .. possible to the original site. All other locations

except station 9 have been the same for "'any years. Stations

were classified as t~o-lane, four-lane, or interstate highways.

A representative sallple or .pot speeds ~as obtained at .. ach

of the four stations in each classificltion. The site loca­

tions were as follo~s:

5. U.S. II

6. U.S. 52

7. U.S. H

8. U.S. 52

1. '-69

Z. '·65

3. )-14

4. 1-65

•, 'N~1Ul~0l.'S

••

••,-

Su.

su ,

,

FIG" LOCATIONS OF SPEEO-STUOY STATIONS

,The vehicles were classified .s Indiana Or Non-Indiana

Passenger Cars and Light (less than 5000 l~s. gross weight)

or Heavy (equal to or eore than 5000 Ibs gross ..eight)

Trucks. The analysis ...as performed as classified and cOm­

bined, passenger CarS Or trucks.

The Iluil".... speed limits in Indiana are as follows: 10

aph on interstate highways and 65 mph on other rural highways

unless othe .... ise posted. The state limits were applicable

n ell stltions of this study except for Station 11 "hich

lid been posted at • 60 mph lillit. This 10'ol&r speed Ii.lit

appeared to have little effect on the treffic speed. (Sec

Table 11).

Equipment and Field Procedure

The observations for this study were obtained by \lse of

In "Electro... Ut" Radl Speed Meter. The lIleter ...s placed

approxi.ately four feet from the edge of the pavement at

anglu less than 100 with the hi,lt:hway center line. So

corrections of speeds were necessary at these s=all angles.

At the beginning of the study the accuracy of the meter waS

checked and any constant discrepancy of readings was corrected

accordingly.

Results of Analysis

The data collected were analyted and summarited in Tlble

1 to 12 1n the Appendix. Tables ll, 14 Ind IS sUlllll3rite the

data for interstlte, four l.ne_ two lane highways respectively.

Table 16 is the sum..ry for all highw.ys.

•The average ~peed for each classification of vehicles

on each type of highway for this study "as 's follows:

Interstate four Lane Two Lane

61.97

62. 41

68.69

64. !l

64.32

70.94

69.11

69. S5

74.37

Passenger Can:

Indian.

Non- Indiana

8S Percentile (all)

Tru<;ks

Less tlln sooe Ibs. 63.67 59.37 58.25

5000 lbs or ..ore 60.93 55.19 $S.61

The percent of vehicles exceeding the speed limit for

each classification of vehicles and each type of highway "as

IS follows:

Intentate Four Lane 1"o Lane

Pantel"" Cars:

Indiana

Non-Indiana

Trucks

Les. than 5000 Ibs.

5000 lbs or mOre

41.96

43.22

13.64

3.95

H. SO

48.47

23.08

4.26

29.47

32.17

14.12

4.55

;

The percent of vehicles traveling 5 mph or mOTC above

the speed Ii.it for each c'so ~a5 a. follows:

Interstate Four Lane Two Lane

11. 10

1. a!

18.20

20.2S

n.78

12. 71

Passenger Cars:

Indi.n.

Non-Indi.n.

Trucks:

Less tllan 5000 lb.. 3.03 10.26 3.39

50110 lb. Or ..Ore 0.00 0.43 0.41

The results of this study and similar studies conducted

since 1961 are tabulated in Table A. A siMple linear

regression .n.lys;s on these results was conducted and a

sUUI.ry is given in T.ble B.

A linear relationship hetween speed .nd year ....5 assumed

with S the esti••ted slope of the Huight line. Four

hypotheses were tested (8·0.5,8·0.75, 11.1.0 and B· 1.5)

in order to pl.ce values on .nnual trends. It was found th.t

an incre.se of • 0.75 mph/year tTend existed for ,II caSeS at

the 95\ confidence level.

A graphical representation of Table A and B is given in

Figure B.

•TABLE A

SUMUJ,Y OF SPOT SP£Et1 OasUVATlOl' Oll l~lllAKA HIGHWAYS

(Ffu-ao.inl Yehlcle, on L.~l! Taneent section.)hunlH Cars TTuch

I lid. Son-Ind. '" '" tilht Iluvy '"MUll Me.n MUll m linn Mean lIe.n

Two-L.ne lit,,,...,.Au,. ." S6.1 H. S S7. C 61.7 51.1 '9.3 SO. I,~. ... 56.9 S7.7 S7. Z H.O 5203 41. , .'.7July ... 59.1 60.1 59. S 66.6 Sl.' 51. 7 iZ .•sept. ... 51. Z 57. , 51.1 U.6 S' • 3 50.6 H.7s.pt. ... 60.1 51.S 51.9 65.5 SS •• !>O •• SLC,,,,. ." 61.0 61. 9 61.3 n.D n.' H.' 52. 7JUII. ... 61. Z 62 .• 61.S 61.1 H.' S'.2 $I .3July ... U.1 H.6 64.7 71. , 60.5 55.9 51.9July ." 62.1 61 •• 62.1 6'.9 59.0 H.' 56.7July 'n 61 . 4 60.9 61. ) 61.0 SI •C S~. 0 55.6Juu 'n 61.0 62 .• 62.0 61.7 U.S 55.6 56.1

four-L.ne 1I!''''''7'A.... " 59. Z S~. 3 59 • l 6S •• SC.7 51. ) H.9,~. ·U 60.' 60.6 60. S 66.S H.D ta.6 5 I . 1July ... 61.5 61.0 62.0 69 •• 55.1 5'. S s•. Ts.pt. ·U 60.1 n.l 6l.0 61.2 n. S 53. I 53.1Sept. ... n.l 64.3 61.5 69.0 51.7 Sl •• 5_ .1,,,,. ." 64.1 6 5 • 7 6Soll 7C.3 57.0 5_ . Il 5_. 9Jllne ... 64.l 66. l 64.9 70. _ 51._ 55._ 56.1J",ly ... n.7 61.1 67.9 U.6 6C .0 51. Il 59.6Jill Y ." 64.6 64.1 6_.5 7G.6 59.7 H. G SC .1Jllly 'n 6_.1 65._ 6_.7 7G • 1 59 •• 56. _ H. _

J",ne 'n 64.1 64.1 64.1 7G. 9 59 • 4 H.2 P.I

Interstete HI.h.... ysAll' • ." 51.1 59 • 1 51.1 65.6 H.I SL7 51.2,~. ·U 59.7 61. 2 60.1 66.1 $S.2 51.5 52. 7Jllly ... 11.9 64.0 62.7 10.5 56 .• 5'.6 55.2sept. ." 61. 2 62.1 61.5 61. 7 54.9 B.6 Sl.9sept. ... U.I 61.1 62. 5 61.5 56.1 54.9 55.1All' • ." 66.4 61.1 61.1 73.6 60.0 56. 9 51.5,~. ... 66.2 67.9 66.1 n .4 60.5 51.9 51.5Jllly ... 70.2 71.1 71l.6 16.6 65.1 59.9 &I ••Jllly ." 69 .1 69. Z 69.2 74.6 61.1 59.6 6G.5Jllly 'n 61.1 61 • 1 61 • 5 n.1 64.1 59.4 6G.1,~. 'n 69.1 69.6 69.1 14.4 61.7 60.9 61.1

All Ill.hll.y",., ." 51.2 51.7 5I. 4 65.1 54.5 51. Z SI.I,~. ·U 59.0 59.9 59.1 65.2 S4 • I 49.5 51.1Jllly ... 60.1 62.' 61.5 69.1 55.1 51.7 5_ . 1sept. ." 69.9 60.9 60.1 66.7 5' .9 S2.6 B. Isept. ... lol.l 62._ 62.0 61.0 56.7 51.7 B .•

''''. ." 61.9 65.1 64.5 71.4 56.1 54.6 55.1,~. ... 61.1 66.6 U.S 70.1 51.2 56.2 56.5JIIly ... 61.1 61.1 61.9 7S. I 62. 7 57.9 59.5Jllly ." 65.1 66.1 65.5 72. 2 6C.l 56.4 51.5Jllly 'n 64 .1 66. J 64.9 71. 9 60.1 56.1 51.9Jllne 'n 6' .1 66.9 6S . 2 12.2 6G.l 51.6 5I •6

,

00

'.. .. .. - .. .. .. .. '.. ,.• • • • • • • • • •• • • • • • • • • ••'..

•'.. '.. .. '.. •• • • • • • • • •z • • z z Z Z • •0-• •• • • • • • • • • • 0- z z z z z z z z z - •• • •> - •

" • •< • •z '.. .. .. ..< • • • • • • • • • • •• z z z z z • Z Z •Z •0 •• 0

• , .. " , - • • - o. 0

• - • • • • • - 0 , "• • - - - .. - - - - .. 0• •0• 0 •• -.. • • • • • • - • • •• • 0 .. • • .. , .. • z< .. , • • , , • • " • •" •z -- •" •• N • " • • .. • , •• , • • • • • • • • •" - • • • , .. .. • " • • •• • •• -- •• •• • • .. • • • • • •• .. • • • • .. " , • • 00 , • N • .. • • • 0• 0> • • N , 0 • " • 0 • • •• " .. - N •

~• ..• •0 •, • •• • •• - - - - - - .. - •• - - - - - - - -• • -• 0 0 .,

• - •" • ,• • • •< • • ,

• • 00 ~

0 • • • • • • •0 0 • • • • •'. 0 • • • 0 • • "• • 0 0 u .. • • •• • • • • • ,. .. .. 0• • • -• NO -. • •• •• •'. •• •• •• -• -. NO .- .- ON •• •• •• •• < • .. .. • • • •'. •• •• •• 0 • • ,. ,. •• • • • •• .. .. • • •• •• • • •• • • 0< .. • • • • • • • 00 •• o • 0 • • • 0 ., O. O. 0- •• 00 .0 O. 0_ .. • • • • O. - •u .U "U "U •• ." ., •• O • ". - •0 • • • ~

0 • < •- • N • " - • N •

..~......:.~, ... _ t-· ~.-

• • •. '•

....•

••••

I..

,.., •

•

•••••

.,

..•

-..•

• •••

• •

,Summary and Conclusions

The average speeds in this study ~ere found to be O.S}

.ph higher for passenger cars and 0.7S mph higher for heavy

trucks than the results of 1971.

The simple linear repression on the results of the past

eleven years (196Z-1972) concluded at 95\ confidence level

that:

1. Thele has been a 0.75 mph/year Average annual

speed increase for the follOWing nine classifications:

D. Interstate Passcnger Cars as-percentile,

b. 4·18no Passcnger Cars as-percentile,

c. 2-1ane Passenger Cars as-percentile,

d. Mean of all passengor cars.

e. Mean of all light truck.,

r. MeBn of all heavy trucks,

g. Interstate Heavy Trucks IS-percentiles,

h. 4-1aoe Heavy fruckS IS-percentiJes,

i. 2-1ane Heavy Trucks IS-percentiles.

2. The speeds of the past 5 years indicate that the

increases during this period have leveled off com­

pared with the period 1961-1967.

The increase in mileage of high type highways such as the

interstate system and the gTowing percentage of vehicles viola­

ting current .axi_us speed li.its tend to support the belief

that drivers select the travel speeds they consider safe

irrespective of the .aximum speed li.its.

"

Determination of Sample Size

It ~.5 desired that a 95' confidence interval of the

true mean of the speed of passenger Cars khould not be wider

than ZlIph. for trucks ..."ighing 5.000 lbs. or lIore • 95\

confidence interval with. 4 .ph band .... s desired.

Assu.ing a normal distribution of speeds and using the

standard deviation of the 197J data, the lIininuII s••ple site

for hssenger Cars: [, 1.96 '"],, •

, ,,For Heavy Trucks:

, • [" 1. 96 X6.64] 2,• 216 observations

• 42 observations

NOTE:

At all stations. at least 330 p.sseng~r ca.. observations

and 46 heavy truck observations were obtained for the study

reported herein.

APPENDIX B

Speed Data (Tables I to 16)

• •-; Ii

:.~~- .....I~-;I;r,; ...:I:r ..0'[0 ,•••.o~O"

­••u

­•• •u.

••u

-•• •u _

•..• •••

••o••

1=·• •-"-"--• •••u•• •• ••- ..· "•

••u ••" .••E

••• ••'" ... ..".. - ..... ;:;

~g••

i: .­• •

~ ...•••..­00.•• •,-

- I'-•o'_ 0

••~ ~

•• •0 ....=•.­.-•;~

.. ~ 0; .::: .. -; ..- ib.. ~ ...... u t~:- -:I: '" ~•<> :I ..

•- ..u u• •o •";: ..• =, .u ,

•o

•-• •• ••,•­"-

•••••

"•• •o

o• 7-, .-.u 0­•-­•• •• •• •" -~ e· -o •:

•u•••

•

"o••••

":1 •• ••• -.• - o.-• • •• • • •• • •-• - •w • • "••- • •• • • ••- • • -.• • • -••0 • w• • •- • • • •• • • • •• • - - •• • • "• • • •• • • •• .~ .... •• .- ••• ., -.• .- o.

0 - -;:::. •• < •• •• 0 •• •• • .. - ..• • • • • •• .- • •• - • ••• • • • - ..< ••• • o •• -.- •< • .0.0 •

• • • •• • • •• • • "• "0 • • •• • < ••• w • ••• • .." • • • • •• - w ••• V •w " • • • •" 0 w •• • •< • • "•

~~<• •••..• •--< •••• •0 •• •••

'bill ..,•- •• •-•• • •, • • •• •

~~1~'~~•• • • • •• • • ,

:::~~ •0 • 1111 ••• 11 •-..• • • )r. ~:: • •• < •• • • , • •- • •• • • •

0'" 'r •" • w • •• • - JO U Jtlltu... ~ ...~ ..• • • ••• SUt• • n"l'l.;I", ;0 \ .. ~ 0 ~•• .......

• • .0>0>-• •HI'!'!'",\ '" '0' 0

"•• ," :1 •• • • 0

• • 0 , ,

" 0 • • 0

• • 0• 0 •0 •• • •• • "••• •• • • •0 • • 0• • " 0 •• u• 0 0

0 • • • 0 •• • 0 • 0 •" • - • •• • "• 0• • •• - •• • • •- • • 0• 0 •• • "• "• • • •• • •• • 0 •• • "• • •• , •• • • 0 •• 0 " • • •" • ·.: - • 0• -u •• • 0 •• • ..- 0• • 00.

0 • 0 •• • 0 •0 • • • • •• • • • "• u "0 0 •• • • • ••• 0 u • • •• • 0 • 0• • • • • 0 •• • • •• • 0 •• " • • 0 • <>000 .0.

" 0 • • , . , " ' ,00• • • 0 000 "' ....... _ .. 0• • • " ... "" .... C'>~__• • •

~• 0- •• • •, • 0• • •"- -

~~• • • ••• • ~• " •• •• •,

••- 0=

i•-•• • • •• • ' 0 • •

~• • • • •• • •• • • , • ~= • •..- • • •00. " • -~• • • • • • • •• • • - .- -• •0 - > •

~•• • • • • • :,"'• • • • U"I,[I >

0 0 • •• - • - ~,at '" .. IlItl aAU1- • 0 • ." ;)11[ .... ,. •• , 0

• • •• • .' •0 •Ul~!'l., '"

TA

BLE

SS

PE

EP

DA

TA

flig

h"a

y1I

5,\

Lo

cu

ion

1,2

Mil

es

So

uth

of

S,1

\.3B

Ty

pe

of

Su

rface

Asp

h.l

tC

on

cre

teW

e.t

her

PlT

tly

Clp

ud

y

Last

Pre

vio

us

Ob

serv

ati

on

(Sp

eed

Rep

ort

So

.a.i

)

Sta

tio

n'

So

.o

fL

anes

----

'.

Th

isO

bse

rvati

on

IJlt

eIl

lne

26

.19

ZZ

Uat

.,Ju

ly2

1.

19

71

Tim

e1

l:0

8-1

:IS

p..

.T

ille

9;5

0-1

0,H

•.•

.

PA

SS

EN

GE

RC

AR

TR

UC

kS

All

Ind

ian

aN

on

-In

dia

na

All

<SO

OO

lh

.>S

OO

OIh

.P

res'

Pre

s'

Pre

s·P

res'

Pre

s-P

res-

OB

SER

VA

TIO

SL

an

en

tL

.st

en

tL

ast

en

tL

ast

en

tL

ast

en

tL

ast

en

t

'0.

of

veh

icle

so

bs.~7

B7~

~1

01

16

3547

746

9v

e.

s101

0.....

46

64

4S7

728

25

8061

2156

757

36ta

nar

eV

UO

on

47

46

39

659

60

87

7S

S.n

7.2

70

83

48

.77

1s.

n5

.58

9•

Ill.

•O

.0

.00

00

0~o

00

0.0

0.0

0.0

0.0

0.0

0.0

:::•.

..

00

00

00

t-t'"

0.0

0.0

0.0

0.0

0.0

00

00

~~

..

0+

00

.00

.0O

.0

.00

.90

.01

.90

0+

00

.0..,

.•.

..

0.0

00

00

.00

90

01

90

-t'"

00

.:::;

~.

.0

.00

.36

0.0

0.0

n.o

1.7

81

.82

.59

2.9

4.1

61

.44S

:::~

..Li

i---S

-'"0

.71

.43

0.8

I.z

to

.n1

.?!

9.-;

_.7

II.

LS

i.1

7.

S~

~..

r-1~"

.86

.0..

66

.17

0.0

5.5

6.f

.~.1

19

.31

to.O

11

.18

36

.53

4.

8;,.

....,

~"·P

..ll

.817.~6t~+J8.1I

...l

....

1-l

l.8

9,5

8.7

.}1

.71

_4

2.9

40

.43

6.1

59

.42

~"

.64~".

36

.3.3

.37

37

.64

3.1

13

0.a

U.U

84

.48

1.0

36

5.7

63

.83

93

.9

1.

5-

,.;:::

-W

",.

p..

7Z

7S.6~

71

.77

6.5

46

3.5

69

.U9

9.1

90

.52

97

.1?!.

7Z

10

09

8.5

5."

'-~"

......J

II..

Ii.

03

90

.68

91

.19

1.3

68

6.5

86

.11

99

.19

9.U

9-h

!97.~00

10

0.0

o:::

~.~:9..

..

.t:~;;.lmt7.9

97

.53

96

.Z9

4.U

10

0n

o.

I*"-10~~

01

0.0

~....

•...

.n

.69

.U

10

01

00

.01

00

10

0.0~

_~o

10

Ilg

g.g

,.

...

..

InO

964

'1

00

99

.59

Coo

10

0.0

10

01

00

.0~

~O

10

0I

.

~'0

.o

fv

eh

icle

so

bs.

1415

91

15

liS

25H~S

53

19

17

3636

..::

"era

es

u6

6.1

63

.91

66

.06

1.5

8f.

6.7

65

.46

59

.05

6.9

1.3

5.

95

..

~o

.0

ve

lCU

0s.

14

91

40

lZ1

2a

11

'"A

"era

10s

ee

66

.76

6.7

86

6.•

66

.85

68

.6

6.0

05

6.4

O.

5.8

3.

..

­ •

o

O~'~~,I••-

o0.0

• ••

• •• •

"' ...,00 ..... 0000 ",1m0"'0 _........ • •... .0000 . .

...... _"' ......... 00 <:> '"_N"'",""" " N

. . . . . . . . . . .goo_ ... .., ..,... "' .. ",,"

•• 0

• 0.0

, .•••.0> ..

<

,•• ••

.<> .. " '"....... ., ...o •<> .. "''''00 0,,"0"''''0

I:Oq~~·~··~€'f~:'~t~~'~j'~'§'~I,~!o~1°w.°~o~1°~~.... 000-0000 ... 00000 "',.,~ "" ... .,co '"

, "'_0 .,0 .... 000 _ _ ...

• ••'" '" .. " ....."" ... 0.., '" '"u

~ g••

•

...-'0· '•-

o0 •••••.. ;:J ..

00,:: :: ~<!':<1:;:

•

o" .= ~

~

•• •O.• •" .

--"••<•••­"~­o~t

"~•" 0: .~;: ..-.".N" ."'" ..O.•o

, 0

• zo·0•

o0_•• 0-•_ 0

• z

~

I

•••­•••zo

••••­o

,•••o••Z

•

••

E•--•••

TABL

E7

SPE

ED

OU

A

Su

t;cn

7II

;gh

o:a

yU

.S.

HL

ocati

on

l.0

Mil

oN

ort

ho

fS

.R.

2

:-0

.o

fL

anes

4T

yp

eo

fS

urf

ace

A$

ph

alt

Co

ncre

toW

eath

erC

lou

dy

&W

indy

Th

isO

bse

rvati

on

Last

Pre

vio

us

Ob

serv

ati

on

(Sp

eed

Rep

ort

:-0

.89

)D

ate

hly

17

.1

97

2D

ate

lUi)

'22

19

71

-T

ime

10

:n·2

:35

p..

.T

ille

9:5

0-1

1:2

0••

••

PASS

ENG

ERCA

RTR

UC

KS

'"ln

di.

n.

No

n·l

nd

ian

a'"

<SO

Da

Ibs.

>50

00lb

••P

res·

Pre

s-

Pre

s-P

res·

Pre

s·

J.:

'res

last

len

tL

ast

'"la

st

'"ln

t,"

Last

,.,l.

st

en

t

<. "o

.-'

""fR

ITI!

i~~

rnrU

E~~r

t.f,. 0-

,>

-<

0

->

.0

•• "'

.»

]j;,

P-g

'0.

of

;'ch

icl<

-scb

s.4

41'-

10

4IH

""'e

ra,e

"red

b~b

4.7

1m

86

t.7

64

tC

.0.

0v

eId

es

ob

s.It

1t3

II4

'";'

eraR

esp

ee

6~.7

62

.77

63

,16

30

47

1

­ "

"-I •• • •• • <- 0 •• 0 •0 • 0 •- 0 •• - •u • • "0- 0• •

• • • • -• • • 0• • • - 0 •0 • u• , 0• 0 • • -0 0 - • 0 •• - - •• • • "•• • <• •0 • 0_ •0 • -, • •-, • •- •• ,- <• •• • -0 •;- 0 -• • ,• 0 • 0

: " -•• < •- • • -•• > • • - • 00 z 0_' • 0 •• 0 .....~ <~ 0 • 00.

0 -- • - 0 •0 -• 0 •U < • • "U 0 "0 0 •- 0 0 •U • .-• < • <• • • • o.0 u -0 U •• " • < •

" 0 • •• - •0 • • "• • 0• 0-- •- • .-0 • <• o.• -• -, 0 • 0 • .'o. -.00 .0

0 - • .0~I~ :;; :;; : '" ~0 , " -• •• •••

"'~~ II•- <Z 0-•• • . 0[';..,;,..; • •> • • < •• • 0 0

*~~*0 0

• ••• -. • • """1' ... -I',' • •J> •._ 0 •.:.. ~ .~~ • 0• 00. -• -- • • -•0 • 0 •• o • • -0 -•< - > • •• • • o 0 0 0 • 0

" • u •• 11''11 > >< - 0 •0 • • H~t " " !lIH~~·n •- 0 0 ..,:)l'lu, '0

, 0 • 0 •• • •• • •• 0 0 > 0 >• • uu.n" IIY ,-. -,

"it •• '0• • •- "

• • 0, • 0 0

• 0 •- 0 • •u " • "••- • •• • • '0

• • • • ••• • • • - ••• • u• , 0• • • c 0

• • • • 0 •• • - • •- 0 • "• •• • ,• • •, ••- ".••- -• -• 0

• •• •• •• • ,• •• '0- • • • - " .• '0' • "• ..- •, .c.

00 • •c • • •• • • "• "• • • ,

• • • •-. u • '0• • • •• • • • • •• • -.• 0 •• " • • 0

" • •• • •• • • "• • •• • ,• •- • ••-, • •• • •-• •• • 0, •• •• •• •• •••--~L

•• • • • • .! • • •• ... ~).<: •• •• ·' , ''f . . '.' . •

~• 0 •, • • , - . . . .

~~f• •..- • •••• .. ·f • • • •• 00. -. ';; .. ".• • • •• • - • -..• - > • •• • • •• •• ••

" • • >0 \/'I[J • •• • • • •• • • ••• U~l " " JIIII~"Ul •- • 0 • S~p l'l. U ,. , • • ••0 -. • •• ••• • • -.0 • ••• ., ••• •

Ul)l'l~'" '" '" .,

":1 •• 0 •• • •" • 0

• 0, • •• •• .. 0• • ""•• 0 •, • • 0 •" -• • •-• • " • 0u 0 u

0 , •• • • • •• " - • • •• • - • 0

0 • 0 "• •" 0

• • •• o.u • •••• "" "• •• •• •0 ""- 0• •• • 0 •• • 0 • " • •• " • ••• • • •• " • ..- •

~ • 0 .0. -• •.. • • • •• • • " • - N

• • • , "• U "• • • - ..- • • • • • •- " U 0 0 • -.N

• • 0 • • • -- •" • • • •

• 0"• • ••• • U •• " < < • •• • " •• - •< 0 - "• • <

~0 •• •• 0 •, • •- • •

"• "" < ••• •• "• •• ••••.. • ••

it: • • •• •• ~ •

1" • • •, • • •

.0- 0 0 •00. " "• •• •• - ,0 < • 0 • 0 •" • • • "'1[1 •• - • •

" • • • " " •• n '''lt~'''UI •.. • 0 " sapJ1l.... , " 0 • •• ,. • •0 0 0

• " ." " > • •-,~3'~' ..a. n. 0>. ••

"- •

'"• • •• • • •- • • •

0 •• • •• •• • • -• • " •0• •• •• • • 0• • • 0 •• • • • • •• V• , •• • • 0 0

• • • 0 •• - • • •• • " -• •• •• - •• 0 •• •• • • •> •• -• -• -• • 0

• •0 •" -•, • •

0 • •- • ••> - • 0 •< .. ~: • •• •• ..- •~

.0.0

0 0 •0 • 0 •• • • • "... ",..,,,,

• "• 0 • •• 0 < • - •V • '0 • '.• - • • • _.......- • 0 • • • • - --- • • • '.0 • 0 • -• " z • • .... 0000 ........ ......... ,go • •

" • • • -• . . . . ••••• <> '" • '.• • • .- 0000 ... .., ........... "'0 0 ... 00< • • " • ..,"' .. "''''_ .. .. ", .. ",

• • •

~0 • • --_ ... _0 .... 00 - •- • 00. ........... • -• • • • •, • • ., • .-• • • _.--- • •

,,~0 < 0 :1•• • • •• " •• •0 •, •• ••• :; :: ..z

1.,:. • • 0

• • •• 0 0 0

• ••0 • • • • • •- DO_ • • •00. - 'Vf!:- • • • • •0 • • • :;:;1" 0

• - •0 • • • 0 •• • •" • w • • 1;1.1[1 • >

• • • • •• - • -• 0 ~,al .. .. 1UltUUJ -• 0 • Jl{U ,0 • • • • •0 • np • •• • • • •0 • o.

"> • >-z

np!'!a... '" '0' •

"•

;'1 •• • •• • •• • •0 0, 0 •0 •• • •• • "0• 0•• • •• • • • •

u -• • •• • • 0 •• u• 0 0 ••0 0 • 0 • "''''0O''"• • - ~ 0 •, < ~ • • .. , o.0 • • • • ••

-0 • ., •0 • o.j • -0. •• • •< • 0 • o. '000

>. • • .-.- O. •0 • • ••'. < • O",ep 0 •• ~. • • -• • .......... 000 0

• " .- 0

• •• • •• • • •0 > • • _0 • • •• , • ••• • 0 • •~ • .....~ •< , • .O~ •

0 • •0 0 • • •0 • • 0 • ,

U 0 • Z " •U U " -• • •• 0 • < •_0 • U • • • •• • • • • •• • < • • 0 • •0 U 0

0 U •• • , • • 000 .... .., __ ... 0 •" U 0 • • • • • •• - • • ... 000_ ........... ..... .,000< • - " • •• , .. •~ 0 <• • "'a- .... '"1............ "'00- • N 0000 ... '.....•.. _ <> '" '" <t> • •

• • •• .... . . -I' . . . • • • • <> 0 0

• , • • "'0 _0000,_"''''''' .. 0 ..... 00 •- o. ... .,... - ... ... '" .... ••• - 0

0 • < •- • •• • • • •0 , " •> > •• ~ ••<•-0 •,

10

-0

•• • • - • - • •> • -. •• 0 0

*~;0 0• •• - 0

• • • z • • •S> ...~ 0 • 0 • •oo~ 0 • •• ~ 0 • • •• • • ~

-0 • 0 •• • 0 <• < • • • • •" ~ u ~e41 > >• - • •0 - • • SS~l " " 8111!~A1Ul -- 0 0

'~l:), '" ,0 , 0 • 0 •• • • 0

• • • • •• 0 0 >. .. > 0 >-,·~Ptll~.\ '" pu~ l'u~

"- •·1 • • • •• • • • 0• • • • •0 0z 0 •

0 • • • • • • •• • 0 •• • " •0• •• 0 '" ,."" ...• • ••• "0>0""0 0 • 0 • • • • •• • • 0 •• " • • • •• u• , 0• • • 0 0

• • • 0 • •• ~ • • •• • " •• • 0

0 • 0 •0 • .> ••• • • 0 • • . • • .00

> 0 • 0 • 0"''''''' '" '" '" 00 """ <:>0 > 0 • • ... '" '" .. C' ••0 • •• • • •0 • • .00 ••• _NOO'

• • • • • • • • .000

0 0 0 • ... 000 ....... 0 00_ ..... 0000 " • • ••• "'-_ ...• •• 0 • • •• _.• 0 0 • ... 000000 ...•• • • • • • ••• > • • •• • 0 • • .00000

< 0.. , • • • • ..

• .0. 0, 00. • ••• 0 • 00 ...• • 0 • • ., 0

• • 0 0 -O. 0• • Z " • •• " •• 0 • •" 0 • • •• U • • • •• • 0 • 0 0

• • • • • • •• W ••0 0 • O.• " • 0 • •• W • •0 • 0 0 oN 00

0 • • " • •• •• 0- • •• • • •• 0 • 0 • 0 •0 • • • • •• •" - -• , • • • •• • •• • 0• " •• •• •,••• 0Z ,

•••• • •

l~> • 0• , 0• • • •.. , Z • > •••• IIi •• 1I.D ...~ 0 • • • • o • • •00. • • >• • • >

0 • • •0 • > •• • • • •" • • , • 1l.1(~0 • •, • • • • • U~l .- " 811~laAUl•• 0 0 ,

UP"I~" ). ,• 0• • •• • .' , •• •"'p ll(a/\ '"

''''~L~

'Q,,,.~~,,

"...

.,,,

St.

tlo

nI

th..

u12

Hig

h..

..y

Ind

ian

.S

yst

e.L

ocati

on

See

Ind

ivid

ual

Su

tio

ns

No.

of

L.n

es

Ty

pe

of

Su

..f,

ce

We.

the

..

Th

isO

bse

rvati

on

Last

P..e

vio

us

Ob

se..v

ati

on

(Sp

eed

Rep

on

No.

8\1)

Du

eD

ue

-T

ime

Til

le-

OB

SER

VA

TIO

N

PA

SH

NC

ER

CAR:

All

Ind

ian

aN

on

·ln

dia

n.

Pre

s'

P...

.s·

Pre

s·L

ast

Ien

tL

ast

en

tL

ast

en

t

AI!

P..

..s·

Last

len

t

TRU

CK

S

<50

00Ib

s.

Pre

s'

Ln

tle

nt

>5

00

0Ib

s.

Pre

s'

Ln

tle

nt

tI::", C.5

32

38 a8

•4

I2

1.7

64

4.1

67

1.B

12

0.5

01

2.7~

99

.~..

'JI99

.851

."

05

0.2

00

.t.l

93

.3

23

84

103

92

82Z

22

43

84

Z4.

,,

879

89

.68

96

.39

7.4

29

9.S

99

.21

10

09

9.8

01

00

99

.80

'" IT:""5

'66

.93

1 "8

3,6

19

6.8

09

9.

H

m:~"97

•, .d ,

~~~7

76

.64

529

504

60

.H6

0.1

08

.27

7.9

61

12

85

58

.56

7.4

53

0.0

8L

.li

~L~i

*if :::n 9

9.6

99

9.9

29

9.9

2

IB4

57

.91

7.3

9

" "." O.

t7 ,,

'"66.9

07

.01

8

27

69

64

.81

7,6

84

23

49

64

.II

7.18

1 ... JW>.

JW>.

W P....c.

!h

l.....

.l.

L.!

ll..

.!.ll

...1.

2.2..,1

.98

•I

99

.~

99

.8

3401

65

.10

7.6

07

-"­

.oJ "., u Jd

fj!u Wl.L

..2.

91

.8

98

.09

9.5

99

.9

B6

06

4.

871

7.4

9v

e.

speed

(•.p

.n.

tan

aard

dev

lal,

on

,H

II..

Ii.

:::

II.

~... o

.:;

.."

o.

•• -..

..p.

.:::..

IS9

...p

.li.

"",c

IU•.

p.l

i.~::

69p

.h.

"'~c

74p

.h.

"..

..!"

9lI

.p.h

...:

;~

184•.

p.h

.$9

.!.:..

p..:.

Ii.

" " <" • " • .- " • >

• •