The Usage of the Railroad Terminal Resources

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The usage of the railroad terminal resourcesAldona Jaraniene

a

aTransport Research Institute , Vilnius Gediminas Technical University , Plytines g. 27,

Vilnius, LT10105, Lithuania E-mail:Published online: 27 Oct 2010.

To cite this article:Aldona Jaraniene (2004) The usage of the railroad terminal resources, Transport, 19:3, 124-129

To link to this article: http://dx.doi.org/10.1080/16484142.2004.9637964

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http:/www.vtu.lt/english/editions

TRANSPORT

2004, Vol XIX, No 2, 124

129


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1M

2M

3M

( )sf tttft ...,,, 21=

sttt ...,,, 21

jt

( )Mmm ,...,1= comes into the terminal with different

type of cargoes ( )Nnn ...,,1= . The main line rail trans-

port is unloaded in various cargo fronts ( )Jjj ...,,1= , a

lot of different unloading mechanisms ( )Ppp ...,,1=are used for the unloading process. Unloaded cargoes

are stored or reloaded from the huge capacity main line

rail transport to loads ( )Lll ...,,1= .


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( )EVG , {}iV= { }jiE , ( )nji ...,1,; =

( )EVG ,

( )ji , ijt

ijt

( )tV Tt ...,,1= ( ) ( )tVji , ( )tni ...,,1=

( )tE

( ) ( )tVti , ( ) ( )( ) ( )tEtiti ,,,

1+= Tt

( ) ( )( )titi ,,, ( )tE 1=iit t 1+t

kt+

0=ijt itjtitjtxt itjtx ( )ti , ( )tj ,

titititi xC titjx

( ) ( )( )titi ,,, We will mark the offer ita and demandjtb in the top iat time t. Following a transport problem

dynamic way will be:

+

=

itjtitjttVjttVit

T

t

xC)()()()(1

min

= itjttitj

tVtjtVit

T

t

xC)()()()(1

....,,1

);()(,)()(

Tt

tVjtbxxx jtjtjtjtjtitjttVit

=

=+

=+)()(

);()(,tVjt

ittitiitititjt tVitaxxx

....,,1 Tt=

),()),(),,((,0,0 tEtjtixx itititjt

)()),(),,(( tEtiti

TttVitax ititjttVjt

,,1),()(,)()(

==

==

=j

jt

T

tiit

T

t

ba11

min0t

min0


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127

f

d

dp

p

tt

CC

tt

C

+>

+ 0

0

pC 0C

dC

pt 0t

ft

dt

p

dpdf

C

ttCCtt

)()(

00

min ++

=

ijktC

ijktS

ijktS

pijkt

S nijktS

nijktpijktijkt SSS +=

bpt

at

bt0

0pt

Maaa EEskEijkt CCCCCC

++++=

aEC

akC sC

aEC

MEC

aavE

TeC a = 365

ave the price of one load usage hour; aT the reduc-

tion of load idle time during 24 hours because of the

optimal usage of the resources to load it.

ap

vk Ct

AC a

=

vA Saved up time during 24 hours by every load;

pt average work time duration in 24 hours; aC

load price, Lt.

( )stts'esCs =

se expenditures to save one tone of cargo in 24 hours,

Lt; ss tt , storing time in existing conditions and sug-

gested conditions by new technologies.

DCGtC tsEa ,=

g average amount of carried out cargo, tones; st in-

equality-storing time between two terms; tC price ofone tone of cargo; index of the capital investmentsefficiency, equal to

00 ;/1 pp tt dividend time.

ZteC pcMEM 365=

Me

pct Z

( ) ( ) ( ) ( )11 +++=+ + tUBtUBtXtX

2,0 = Tt

( ) ( ) ( )11 += + TUBTXTX

( ) 00 XX =

( ) ( ) ( ) ,, tftUtl


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128

( ) ( ) ,tgtX Tt ,1=

( )

( ) Tt

tU

tX,0,

0

0 =

( )tUXJ ,,0

( ) maxTXn

( )0...,0,,0 =X

( ) { }= 0,...,0,,Tg ( )tR

( ) ( )( )

=

=

1

0min,

T

ttUtR

( )0...,0,,0 xX =

( ) { }xTg 0,...,0,,0=

( ) ( )nTg = ...,,,,0 32

xi0 = xi

( )t

( ) max,TXn

( ) ( )= ;; tftl ( )t

( )0...,0,,0 =X and

( ) ( )= ,0...,,0,Tg

( ) ( ) ( ) ( ) ( )+= ,,,,,,,, 21211 tftftftftf eeeee

( )tUe1 ( )tUe

2 ( )tU1

( ) ( )( )tUtR 1, ( )tU2 ( ) ( )

( )tUtC 2,

( ) ( )( ) ( ) ( )( )[ ] max,,,1

0

12 =

=

T

t

tUtRtUtC

( ) ( ) ( )tUtUtU =+ 21

( ) ( )

( ) ( )1,0,

,0

,022

11

=

Tt

tftU

tftU


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The Usage of the Railroad Terminal Resources