I
Local Area
Traffic
Management
in
Surabaya
Nugroho
Utomo, Iwan
Wahj
udijanto
Lecturers of
Civil
Engineiring Department, Faculty ofCivil
Engineering and PlanningUniversity of Pembangunan Nasional "Veteran" Jawa
Timur
E-mail : nugroho-tm@Yahoo. com
ABSTRACT
There has been a consistent interest at both the metropolitan scale and at the iocal level to reduce energy consumption, relieve
traffic
congestion, enhance themobility
of central business areas, promote pedestrian anCUiryrt.
ir.,
and improve parkrng management. Over several years, alarge amouat of event relevant to local areait.nning
in
Surabaya has beenriquired.
A few considerable topics of planning, such as pedestrian movement iacititiei, bicycleline
planning, connected public transportations tbcilities, thetraffic
management, and parking-:sign
are particularly applicable to local area planning and design in certain area
of
Surabaya especiallywith
\6ri
business area shares, education and commerce.I
Keyvords: Local area
trafic
planning and designI.
INTRODUCTION
The Technology of Long SPan Bridge
to Strengthen The UnitY of Nation
metropolitan scale,
tkough
community involvementard negotiation
@lac(
1981;
Blunden and Black,1984; Ogden and Bennett, 1984).
Loca!
area planning provides
vital
accessservice
to
abutting lands through
local
streetnetworks.
In this
case,local
street networks are the-:pin
part
of
local
area planning.
Accessibility! creating
too
much traffrc
congestion.
TheseI arcessibility
consideratiousicomein
many forms,I
includingon-street parking,
accessto
oflstreet
parking
facilities,
curb
le.ne loading zones for
commercialvehicles operations,
curb
lanes
and spacesfor
pubtic
transportationstransit.
Inciusionappropriate space and locations
for
these and similartlpes
of
facilities must
be
incorporated
into
acohesive
plan
for
a
local
street networks.
Asexplained, local street
networlc
serve a wide variety 0f land-use patterns.Provisi,rn
of
sdequate streetwidths
and
accessto
arterial sheets
is
generallytequired
for
local
streetsto
function
well
in
such ueas.The
happeningof
complicatedproblems
of
trafficin
Surabayqfor
example, canbe
classifiedtnto fourth major problems.
First,
is
about
an
uncertainty
of
land-useplanning
thal
is executed. There are a many changes;-onsiderations are required by both goods and people
I
mC must be carefully managed to maintain a balancei
betweenproviding all of the
needed servicewithout
INTERNATIONAL
SEMINAR
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PosQraduate Building UPN i/eteran' Jawu Tlmur
8'e-9m 2oo8
of
land-use planning that permittedin
downtown notdue
with
the effect to traffrc problems possibility.Second,
is
about thelogic
of
traffrc
planning andtraffic
orcierlypolicy. In
generally,the logic
of
traffrc
planning
that
applied
in
Surabayais
veryunordinary and
traffic
orderlypolicy is
inconsistent.For
example,
is
about
application
of
parkingprohibition order
in
certairr streetthat linked with
commercial area
but in
fact, theprohibition
hadjust
violated by
a
several vehicles, carsor
motorcycles parkingjust
right in the front of prohibition sign.Third, is
about pedestrian adequate facilities.One
of
the related things that need more attentions ontraffrc
engineering processin
urban areas especiallyin
Surabaya is the availabilityof
pedestrian facilities. Generally,in
residential area andin
central businessdistrict (CBD)
pedestrian lane representing a conflictside
in
frequently
with
traflic
current. This
couldoften
make
a
traffic
delays
and
affecting
thepedestrian safety.
Fronr the entirety
percentage oi'sidewalk facilities amount
in
Surabaya,it's
only about 30%that
have a good condition and properlyto use (Silas, 1996).
Fourtlq
is
aboutdriver
behavior.This
driverbehavior
is
influerce
to
driving
characteristicsof
each personal
who
takesa
part
asthe road
users. Carelessdriving
andtraffic
regulations disobedienceoften rnakes
traffic
accidents, Further, in many areas,local
street
systemsdivi
.
three
primaryobjectives
of
desigrqoperation. The primary
."'*c6ritrol
andl.
Adequate
allocationshould be provided a transportations
2,
Safety
of
bicyclistassured
j space
*public
]!
TechlotoOy of Long Span Bri<tgeto Strengthen The Unity of Nation Civil Engineering Xl I
NTERNATIONAI.
SEMINAR
2008Postgnaduate Building UpN Vetenan. Jawa iinur
3.
3.1
'/
r
l-;
3.
Appropriate
accessto
and
throughnetwork
must
be
provided foa
vehicles
1.2
ObjectivesThe objectives ofthese studies are to:
-
Determinc
a
solving possibility
of
basicproblcms
on
local
areatraffic
management in Surabaya-
Arrangethe
technical strategiesabout
problemand solving related with
traffii
engineering-
Brainstorm what is the betterto
do to overcomeall
the
problems
due
with traffic
and
city
development2.
FORMULATIONS
of
pROBLEMS
Formulations
of
problemscan be defined
asmcntions:
-
Related
with
a
local area
traffic
managetnentproblems
in
Surabaya,
what the
possibie
and precisely solutions that can be carried out?BASE of
THEORy
Planning
'for
pedestrians
and
BicycleFacilities
surabaye, JuV B
*
- g '/' 2oogpedestrians using the anaiysis space and their tirne
of
occupancy. The objective is
to
evaluate ttre adequaJvof a given space for a forecasted
p"ut_p..ioJa.i.,.iJ
and
.the occupancy
time
of
pedistrians *alking
o, standingin this
space.By dividing
theT _
a
byrhe
i
-s;#il
r#;".;il;.;*
".",,i,llPf}
pedestrian and
the
cor,respor,dingLevel
ofi.^,i*
can be determined as fo,llows:^
_
T-
Ssuppty
fS
T
-Sdemand
nt Note:traffic conditions.
The
relationship
betweenpedestrian
speed,expressed
on
thisdensity
equation:
il/ft)
a =
average area per pedestrian (ft2lped) withinthc
analysis space, during the analysii period
T
=
time of analysis period (min)S
=
net effective areaofanalysii
space (ft2)N
=
numbersof
pedestriansoccupying
ih.
,p...
(walking, standing, etc.)t
= predicted
occupancytimes
of
pedestrians for functions performed Curing the analysis period..
The basic pedestrian characteristics and their application are importantto
planning and designingof
pedestrian
facilities.
The
Ua-sic
pedesti-iancharacteristics are:
-
Pedestrian speed (average
walking
speed,expressed in fl/sec)
-
Pedestrianflow
rate
(number
of
pedestrianspas-sing
a
point per
unit
time,
expressed aspedestrians per minute)
-
Pedestrian
density
(average number
of
pedestriansper
unit
area
within
a
walkway, expressed in pedestria.n per ft2)-
Pedestrian space (average area provided for eachpedestrian, expressed in ft2 per pedestrian)
A
basic requirenrertof
pedestrian lane widthfor_p_edestrians passing errch other generally is 2.5 ft
(0.75 m) width
each. pedestrianswalking
togahermay
requirea width
of
2.2
ft
(0.66 m)
Lch.
Thewidth
of
walkway that can effectively
be used by pedestrians is called the clear walkway widthThe
space requiredfor
pedesirian movement may be dividedinto
a qacing zone, the area requiredfor
stepping andwalki{g,
uid
ulro the area requiredfor
psychological factorsof
the pedestrian (sensoryzone). The length
ofthe
p:.cing zone is dependent onthe
age, gender, arrd
physiial
condition
of
thepedestrian. Both the pacing and sensory zones can be
affected .by external influences such
as
terrain andthe
localemergency
I ,l 'a
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I
3.1.
I
Planningfor
pedestrionsFacilities
_.
Particularly
in
urban
and
central
businessdistrict (CBD)
locations,the
pedestrian presents anelement
of
sharp
conflict
with
vehicular traffic,
resulting
in
high
accident ratesand
traffic
delays.Pedestrian movements
and
characteristicsmust
bestrrd.ied
for
the puposeof providing
a Cesign whichminimize
pedestrian-
vehicle
eoifli"tr,
increases pedestrianslfety,
and minimizes vehicledetays.
Careful
assessment
of
demand,
design standards, functional elements,and
space'design-isrequired
for
pedestrianfacility
planning.It,s
best tobegin a. study by defining ttre goats and"objectives
of
the projeet. Safety may be the predominani objectivewhen
pedestrian-orientedcommerce areas
permitaccess
to
buses,
taxis
anri
operations
v.-hicl*s.Pedestrian
demand consists
ol
estimating traffic
volumes, traffic patterns, and composition.
..Lald--use patterns
and building
types
will
provide information relating
with
tri[
generation.Optimal space design may
bi
consideredIs
the bestrunctlonal space that most economically, effectively,
unq
safely
accommodatesthe
movements
of
pedestrians.
analytical
approachproposed
by
Benz\y87).and
Fruin(1992)
ures uiirl
_
space(T
-
S) concept, taking into the balance between time1nd.space..T
-
S analysis is particularly applicable indealing
with
complicatediases
of
iersonal
space occupancies related to pedestrian activities.T
-
S supply is the product of the timeof
the analysis and.the area_ofthe spacebeing
analyzed. So, theT
_s
demandis
the product
of
the total
number
of
I i
I
rl
!
i
ri
:
ll
'lr
,lil
i,
l',
:(
EL
Note:
INTERNATTONAL
SEMINAR
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'
The Technology of Long Span Bridge to Strengrthen Tho Unity of Nation
.-r
aportant criteria used in evaluating feasible bikeway Ottes are as follows:
'
The potential demandfor
the
useof
the
routemust be determined.
'
The basicwidth
neededfor
safe usage mustbe
provided
Continuity
and directnessof
bikeway rouie
is essential, connecting points of importance areaSurabaya, JuV 8 'h - g 'fi 2oo8
-
Safety is a prime otrjective of planning. Anemptsto
minimize
vehicleswith
pedestrianconfliits
should be given in the main priority.
-
Environmental disturbance
such
as
heavyvehicle
emissions mustbe
considered, becausecarbon monoxide
is
definitely
hazardous
to bikeway users-
Separations between vehicletrafiic
and bicycle iane should be consideredin
orderto
a.;oid theaffect
of
moving vehicles that can upset
the balanceofa
bicyclistHighlights
of
important design elements
are
asfollows (ITTE,
I975;FHWA, i980
; Edwards.i992
; Pline, 1992):-
Design speed: 7-
20 mph {11,2-
32knvh)
-
Bikeway width:
the bikewaywidth
depends onthe
bicycle
width,
maneuvering
ailorvance,clearance between
oncoming
and
passingbicycles. There must be at least Z.SO
ft
(C.75 m)of
horizontal
separation betweenbicycie
lanesand pedestrian lanes.
3.2
Traflic
Planning and Management
at
TheLoca! Level
There are
wide
rangeof
land-useand trafiic
planning problems
that
call
for
quantitative
anciqualitative examination ranging
from
commerce areato
aligning the
best approachto
a
residential area.Development applications
call for
meaningfirl rrafficapprsisals
by
localtraific
engineers on aday to
daymeasurement. Examples
of
traffic
generationappraisals
can take
various forms,
such
as
thefollowing:
-
Estimating the site's future effects on thetrafiic
services of existing adjacent roads
-
Planninga major
residential area developmentwith an
internal
and
external
accessibilitysystenl parking
arrangements,and
connectingwith
existing surface roads-
Assuming various alternatives
for
proposedchanges
to
land-use
zoning
ordinances
andsubCivisron regulations
over
extensive area.sof
the
city
Generally,
the
use
of
traffrc
generation analysisto
assesstrafiic
inrpactsis
whatis
requireCin
most local area planning.
For
performing
this analysis, thetraffic activity
associatedwith a
site orparticular
land-useactivity
is
needed.Frorn
thisinformation, the number
of
one-directional vehicular movements departingor
arriving
from
the
studiedarea per unit of,time is detcrmined. The basic
-itia6s1
rc adequecv
iod demuU
walking or
-
S.supply ccupred perof
ServiceS = pedestrian speed (fUmin) D = pedestrian density (ped/ft2)
In
designing pedestrian
facilities,
thesefollowing factors should be considered:
.
Comfort and
convenience:walking
distances,directness, grade
on
ramps, stair suitable for
elderiy and disabled person, directory maps, anci
other things
that
contribute
to
the
ease
of
pedestrian movement
.
Safety: separationof
pedestriantraff'ic
controldevices
from
vehiculartraffic
that safeguard thelives ofpedestrians
.
Security:
pedestrianlane lighting,
crime-freeenvironment
t
within rherioC
i')
the
spacrestriX
for sis periodcs and their
rd designing pedestrian
ing
speed,pedestrians
xpressed as
rumber
ofa
walkway,ded for each
strian)
r
lap:
'.lidtltally
L.s
fting togaha
r)
each. Thcbe
used bY idth.n
movemenlrea
requirdrea
requirdian
(sensorY lependent ontion
of
thc zones c8I1 b€;
terrain andtrian
sPcd
ssedon
thir| !.1,2 Planrtng/or
Bicycle FacitittesI
Although bic1.:le
traffic
composesonly
aI
small percentageof
the
total traffic
stream,
it
isi
ruflicient.enoughto
have an irnpacton
street designI
ud planning. Recent accident studies have indicatedI mt
tnebicyclist
has been increasinglyinvolved
inI
r,ehicleswith
bicycle collisions. According
of
thisI
fact,initiative
extensive programsmust
provide the !bicyclefacilities
designated as bikeways aswell
asI
bicycle lanes on streets. Nov,,,bicycling is
no longerI r recreational
activity, but
is
considereda
feasibleI
dtemative of'eco-friendly'
mobile particularly.I
Designated bicycle lanes are lanescf
the street| lhat are essigned exclusively
for
the useof
bicycles. I These lanes are separatedfrom
vehiclestraffrc
byiim':
placedon
^:::IlT::
streets whereBi:v.r:
bicycte useInnes
to
are
movenormalv
andthl
rparation
of
bicycle lanesfrom
vehiclesiraffic
may be wananted.Bicycle
lanes aregenerally
usedfor
0ow
in
one direciiononly, with u lun" piovided
onach side
ofthe
street.The
width
of
on-streetbicycle facilities
vary lidely, ranging from 4.0 fr. (1.20 m) designatedlanl
b
a
10-ft (3.0
m)
paved shoulder.
In
addition,ltcycles can use space
from
the adjacent lane when tthiclestraffic is low.
It
is recommendedthat
bike-ny
facilities
shouldbe
observedto
determine thetmber
of
effective lanes.Level
of
sen-iceof
on-rreet bicycle lanes
is
impactedby foliowing
aspectslch
aslight
and heavy vehicleiraffrc, coirmercial
hd residential accessroad, and
adjacent on-streetltrking.
.
Usually, bikewayfacilities
haveto
be plannedlocated to integrate with the existing street. Some
-Ex
ion
following-ratesfor
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Technology of Long span BridgeIEI_IJ
to Strengthen The Unity of NationINTERNATI0NAL
S
EMINAR
/.6.
Civil Engineering Xl 2008 Posigrduate Buil,lnS
Y;N
a/:teran' Jawa
limut
\W)
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I
?July8'fr-9'fr zoo8
-
Expectedtraffrc
generatiorirates
at
peak-hourtraffic conditions
The
most important
considerationsfor
thestreet design
when
analyzing street closures for
vehicles are as follows:-
Parking
facilities
along
the
sireet
(on
streetparking)
must
be
analyzed
as
a
lateral bbstruction andit's
reduce the effectivewidth
of
street and also affecting the street capacity
-
Signing,
striping,
and
signalization
mustconform
to
the
closure and
the
approaching vehicles must be given adequate informationfor
proper actions to take-
Part+ime
closuresduring
the
most
congestedhours can
often
bea rtore
acceptable approachto
take, allowing
heary
vehicles
to
retain
anormal schedule
3.2.1
Traffic DivertersMost
of
residential street shouldbe
plannedand designed
for
local traflic,
generally incorporatecurvilinear
patterns,and
T"intersectionsto
a
large degree. There arepositive
aspectsto
such patterns,such
as during
closures
of
parallel collector
or arterials. Howe.,,er,in
many
s;tuationsthe
negativeaspects
outweigh
the
positives.
Negative
factors include thefollowing:
-
As trafftc volume build r,p on
adjacent parallel collectors and arterials, many drivers or the roadusers begin using
locai
streetsto
savetime
andto avoid congestion.
-
The increaseof
throughtrips on iocal
streets isusually aocompanied
by an
increasein
averagespeed,
which
is
undesirable along
residentialstreets
-
Environmental disturbance such as noise and airpollution
createdby
through traffrc brings
an undesirable consequence to residentsofthe
arealn
order
to
attempting
of
reduce
traffic
loading,traffrc
diverters
at
residential intersections
havebegun using.
The
concept
is
simply
that
whentkough
trips
become numerousenough
to
createundesirable residents effects.
Most typical
residentialstreets operate
with from
100to
500 vehicles per day.When volumes reach 500
or
1000 vehicles per day,it
is
at
the traffrc level
and
any
higher
level
that diversion techniques might be considered.Traffic
diversion
is
intended
to
accomplishone or more of the
following
effects:-
reduction in total vehiculartraffic
-
reduction in average speedoftraftic
-
reductionin
environmental disturbance such as noise and air pollution-
efficient protection for pedestrians3.2.2 Driving
Behavior ModiJicationDriving
behaviormodification is
an imponanrcornponent
of
strategiesfor
accident prevention andexposure reduction
of
accident occulrence. Affecting mode choice is a major behavior modification actioithat
is
hardto
successfully achieve-This
requiresproviding
convenient
public
transporl61i6,1aiternatives
and implementing policies
that
rna!,:cpublio
transportation
a
much more
attractivealtemative than driving
for
commuter and other typesof
trips.
By
this
strategy, reduction
of
trafllccongested
will
be
achieved.
Driving
behaviormodification invoives a number
of
policy
measures.including
driver
and pedestriantraining,
removal cfdriver rvith
'bad'
driving records (through suspensionor
revocationof
driving
licenses), and provision ofbetter highway designs
and control
devices rhatencourage good
driving
practicesand
minimize thcoccurrence
of
driver error. Use
of
high-occupancvvehicle lanes and other restricted-use lanes
to
speedpublic
transportation,providing
an
efftcient
traveitime differential
betweenpublic
transportation ano private vehicles, is another useful strategy. The finalstrategy
in driving
behaviormodificatiou is
the lawenforcement. This can be very effective. Speed limits
will
be more closely obeyeciif
the lau'enforcement is strict, and the sanctionsfor
violations are expensive.3.3
Parking
FacilitiesParking
is
a
major urban land-use'
Anyonewho drives a vehicle needs no
difficulties
cf
findinga parking space
in
areaswhich
intensively used lorbusiness, commercial,
or
residential
purpcses. An area containinga
centra! businessdistrict
(CBD), a regionalor
community shopping center, commercialactivities,
and
others
is
usually
an
area
where extensive parking problems are found.fariing
facilities
are an essential parts of thetctal
transp&ation
system.
The
designing
andplanning of these
iacilitics
Cemands en understandingof the c-haracteristics
of
vehicles, the behavior of thedriver,
the
parking
operation,
and the
parkinggenerating characteristics
of
the different
land usesserved.
As one
cf
the activitiesof
the urban complex'parking is requiring
for
spac.e, both on-street andoff-street.iOeatty, a th-e roadusers
would like
to be ableto park
right'in front
oftheir
home,to
avoid the needfoiwalkin'g,
but this privileges is not always possiblcbecause
street
spaceis
more
profiably
used lor moving traffic.lnt
riiffrculties
of
parking
policiesformulaf.iou lies in coordinating parking policies with
,.u.rult
other planning objectives. Thc considerationsobiectives as follows are'qoi
-
'
rlesign parking lots an{ltheir
approaches so that streett;rffic
is:not advdrsely affecred by the in orexit vefiiolbs
'': t
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Technology of Long Span Bridge:iLJ
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Strensthen rhe unitv of NationI T,IT E
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Civil Engineering Xl LD08
Postgraduate Building UPN aeteran' Jawa Timut
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rrdietting acdon :qui16
nUtor
mair
raql\ C
r t).pc,
traflll
:havro:
asu; c\
lr'a
i
cien ! t(;ir ;ion of
rs
lhr:ize r].
Jpa\-,
, spccd
tr!\ci
.)n u)t
re
fiul
iie lru
I
irnrrir illenl rI\nr'0:;c iindrng sed for
es
AnBD).
I
:nerctri u hctc
.oll
S ai!z'
tandini
:ofthr
larkingrd
urr
,ntpltr.
rnd ofT'
bc ablc rc need
,ossiblt
;d
{otrolicrc"
es l\',llh
:f8:torrt
so lh':
:rc in ix
eflsure
that the
interest
of
businessestablishments along
the
streetis
enhanced bygood parking alrsngements
Insure
that parking policies and public
transitoolicies are comPlementary
nr.r.*"
the
character
of
the
residents
byiestricting
parking
and
enforcing
land-use controls.
control parking supply and demand through the pricing mechanismTo carry out a parking planning,
it
is necessary rhave information on thefollowing
points:The supply and type of parking facilities
.
How andfor
what purpose parkingfhcilities
are used.
The demand for Parking sPace.
The characteristics of parking demand.
The locationofparking
generators ..
The legal, and administrative factors associatedwith the parking management
l.
CONCLUSIONS
These studies covered a number
of
topics that:'e
of
much
importarrceto
traflic
engineers and :lannersat
the local level. Related
with a
traffic
:anagement problemsin
Surabaya, the possible and ::ecisely solutions that can be carried out are:About planning the urban facilities:
-
The
pedestrianrnusi
be
consideredin
avariety
of
situaiions.In
businessdistrict
or commercial area, sidewalksmust be
wideenough
to
accommodate
Prevalentpedestrian volumes. Where pedestrian board
mass-transit
vehicles,
it
is
important
thatboarding times and other charar;teristics be
studied
in
orderto
properly
designed as tosize and location
- In
designing pedestnan
and
bicyclefaciliiies,
thesefollowing
aspectssuch
ascomfort
and convenience,safety and
also . security should be consideredI
About
planningthe
tralfic
managernentat
thelocal level:
-
Planning
a
major
residential
areadevelopment
with
an internal
and extemalaccessibiiity systenL parking arrangements,
and connecting
with
existingsur
ce roads-
The use
of
traffrc
generationanalysis
toassess
traffic
impactsis what is
required inmost local
areaplanning'
for
conduct this analysis the traffrcactivity
associatedwith
a site or particular land-useactivity
is needed'-
Traffrc
diversion
may
considered
toconducted
in
the
congested
area
with
improvirtg
alternative
road
to
perform reduction in total vehiculartraffic,
reductionin
average speedof
traffic,
reduction
inenvironmental disturbance such as noise and
air pollution
andto
protectthe
pedestrianseffrciently
-
To
achieve
a
modiftcation
of
driverbehavior there
are
some strategies
thatconsidered to t'e done such as converting the
usage
of
private vehicles
into
publictransportations
to
provide anefficient
traveitime
dift'erential
between
Public transportation and private vehicles, removalof driver with
'bad'
driving records(tkough
suspension
or'
revocation
of
driving
licenses),
provision
of
better
hrighwa.vdesigns and
control
devicesthat
encouragegood driving
practicesand minimize
the occur.enceof driver
error and also the lawenforcement must be assured.
3.
About planning the parking facilities:Parking programs must deal
with the following
'points:
i.
Planning and policy: overall objectives mustbe established and plans drafted
to
achievethem anci general policy on parking must be set as Part
ofthe
Planning e{Iort2.
Parking regulation enforcement:
parkingand other use regulations
must be
striall'
enforced.
REFERENCES
Benz
Gregory8.,
TrunsitPlatfurm Analysis
Usingthe
Time-Space Concept,
TransportationResearch
Board Record 7152,
NatiorralResearch Council, Washington
D.C' :
1987'Black
John., Urban Tt'nnsportPlanning,
Baltimore'Johns Hopkins University Press, 1981'
Blunden
W.R., and
Black,
lA.,
The
Land-(.lse/Transport System, 2nd
ed.,
New
York:
Pergamon Press, Elmsford, I 984.
Edwards
John
D.,
Transportation
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Hail'
Englewood ClifI's, 1992.Federal
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SafetY
and
D.C.:
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Locational
Facifirtes:Usen
Department
of
Crtteia fo,
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UrbanTransportation.
0rdAr
i
fiEKA-YA!{Washi
r'
I
INTERNATIOruNL
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The Technology of Long Span Bridge to Strengthen The Unrty of Nation
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John J.,
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andGuidelines,
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at
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C.Jotin.,
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,
New
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K.W.,
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D.W.,
Traffic
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hactice,
3'd
ed.,
Ir.{onachUniversity, Depaltmeni
of
Civil
Engineering,Victoria. Australia: 1984.
Pignataro Louis J., TrafJic
Engineering:
T'heory andPractice, First Edition,
,
New
Jersey, USA: Prentice-Hall Inc., EngiewoodCliffs,
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L.,
Traffic Engineering
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of
Transportation
Engineers,New
Jersey: PrenticeHail,
Englewood Cliffs,1992
Roess
Roger P.,
Prassas,Elena
S.,
and McShane,William
R.,
TrafJic
Engineering,
Third Edition, New Jersey,USA:
Pearson EducationInc., Upper Saddle River, 2004.
Silas
Johan,
Kampung Surabaya
Menuju
Metropolitan,
Cetakan Pertama,
YeyasanKeluarga
Bhakli
SurabayaPost,
Surabaya: 1996.b-M25"6