Centralised Traffic Control Working On Dhamra line of ECoR

P. Venkata Ramana, Senior Professor (Signal)Indian Railway Institute of Signal Engg & Telecommunication,

Secunderabad

Railway Convention on 3Cs SystemsManekshaw Convention Centre, New Delhi

28th & 29th August, 2015

DHAMRA PORT

BAY OF BENGAL

DHAMRA LINE

Bhatatira

Tihiri

Gurudaspur

Bansara

Dhamra

Ranital Link

Bhadrak

DHAMRA LINE

Ranital Link

Bhadrak J n.

Bha

tatir

a J

n

Tihi

ri

Gur

uda

spur

Bans

ara

Dha

mra

Bulb

1

Rail Flyover

Che

nna

i - H

ow

rah

Trun

k Ro

ute

Bulb

2

Port

SYSTEM OF WORKING

Ranital Link

Bhadrak J n.

Bha

tatir

a J

n

Tihi

ri

Gur

uda

spur

Bans

ara

Dha

mra

Bulb

1

Rail Flyover

Che

nna

i - H

ow

rah

Trun

k Ro

ute

Bulb

2

Port

• Ranital Link: Special Class Station• Bhatatira Jn: B Class 6 line Station• Tihiri: C Class Station• Gurudaspur: B Class 4 line Station• Bansara: C Class Station• Dhamra Terminal: B Class 8 line Station• Port Bulb 1: Special Class Station• Port Bulb 2: Special Class Station

SYSTEM OF WORKING

Ranital Link

Bhadrak J n.

Bha

tatir

a J

n

Tihi

ri

Gur

uda

spur

Bans

ara

Dha

mra

Bulb

1

Rail Flyover

Che

nna

i - H

ow

rah

Trun

k Ro

ute

Bulb

2

Port

• Multiple Aspect Colour Light Signalling (MACLS)

• Interlocking Controller– Single Processor with Diverse Software– Hot Standby– Keyboard, Video, Mouse (KVM)– Data logging & Diagnostics

• Track detection by track circuits• LED Signals

SYSTEM OF WORKING

Ranital Link

Bhadrak J n.

Bha

tatir

a J

n

Tihi

ri

Gur

uda

spur

Bans

ara

Dha

mra

Bulb

1

Rail Flyover

Che

nna

i - H

ow

rah

Trun

k Ro

ute

Bulb

2

Port

• Conventional Double line Block: – Bhatatira – Bhadrak -- Ranital link junction

cabin

• Inter-cabin Slot working– Dhamra Terminal - Port Bulb 1 & Port Bulb 2 

• Electronic Block: – Bhatatira – Tihiri – Gurudaspur – Bansara –

Dhamra Terminal

• Block Section Proving by Axle Counters

WAYSIDE STATION

CTC CONFIGURATION

CTC NETWORK

Ranital Link

Bhadrak J n.

Bha

tatir

a J

n

Tihiri

Gur

uda

spur

Bans

ara

Dha

mra

Bulb

1

Rail Flyover

Che

nna

i - H

owra

h Tr

unk

Rout

e

Bulb

2

Port

STATION INTERLOCKING CONTROLLER

CENTRALISED TRAFFIC CONTROL

OFC

Leased Line

CTC FEATURES

• Application Servers– In duplicate

• Control Terminals– Controller, Supervisory, Operations

• GPS based Time Servers– GPS Antenna– In duplicate

• Network Devices– Industrial Grade Switches & Routers for

Dark fibre & Local Ethernet

• Diagnostic & Maintenance Panel– Video Replay, Data logging & Diagnostics

CTC FEATURES

• Application Modules– Station Layouts– Status of Interlocking Controllers

• Alarms & Enunciators– Local & Remote Faults

• Algorithm– Application Data design

• User Authentication• Route Stacking– Fleet mode

• KVM • NMS

CTC FEATURES

• Local/Remote Operation– Signals, Switches, Crank Handle & Gate

Controls– Block Operation

• All Emergency Cancellations– Except Emergency Switch Operation

CTC NETWORK

CTC NETWORK

Ranital Link

Bhadrak J n.

Bha

tatir

a J

n

Tihiri

Gur

uda

spur

Bans

ara

Dha

mra

Bulb

1

Rail Flyover

Che

nna

i - H

owra

h Tr

unk

Rout

e

Bulb

2

Port

STATION INTERLOCKING CONTROLLER

CENTRALISED TRAFFIC CONTROL

OFC

Leased Line

Essentials of Absolute Block Working

For Single line provided with MACLS• Line Clear has been received from the

Block Station in advance• The line is clear of trains running in

the same direction, up to the first stop signal and an adequate distance beyond it

• The line is clear of trains running in the opposite direction

• The adequate distance shall not be less than 180 meters in MACLS

Special Requirements - Indications

• LINE CLOSED– At both the stations– When the instruments are normal and there is no train in

the block section

• TRAIN COMING FROM– At the receiving station– When Line Clear for a train to leave the Block station in

rear has been given

• TRAIN GOING TO– At the sending station– When Line Clear for a train to leave a Block station has

been received from the Block station ahead

• TRAIN ON LINE– At both the stations– For Token less Block Instruments

Special Requirements – Push Button

• TRAIN GOING TO & COMING FROM– Button for TRAIN GOING TO– Co-operation of the Station Masters be

dispensed with

• TRAIN ON LINE be automatic• LINE CLOSED– Button for LINE CLOSED– Can be dispensed with where an

automatic device of closing the Block section is provided

BLOCK WORKING

DID

P

2 (THR-BTTR)

(THR-GRDP)

BAXT

P

BAXT

UID1

SECTION BLOCK

LINECLOSED

TRAINON LINE

GRANT REQUEST

LINE CLEAR TIHIRI

LINECLOSED

TRAINON LINE

GRANT REQUEST

LINE CLEAR

SECTION BLOCK

BLOCK WORKING

Steps Involved

• Establishment of Direction of Traffic• Obtaining ‘Line Clear’• Closing of Block Section

DIRECTION SETTING

S22

BHATATIRA TIHIRI GURUDASPUR

DnUp

1T

S2 S2

S1 S1 S17

BAXT 1T

2T 1T

BAXT

  Bhattathira Tihiri Gurudaspur

Signals S1 RECR UpS22 RECR Up

S1 RECR UpS2 RECR Up

S2 RCER UpS17 RECR Up

Track Circuits

1T UpBAXT Up

1T Up2T Up

BAXT Up

1T UpBAXT Up

DIRECTION SETTING

Bhathatira

Reqest forSetting of Dn Direction

Reqest forSetting of Dn Direction

Gurudaspur

Tihiri

Up LSS &Dn FSS On?

FVTTC Free?

BLOCKAXT?

UP & DnFSS On?

BO TC Free?

BLOCKAXT Free?

Up LSS &Dn FSS On?

UP LVTTC Free?

BLOCKAXT?

Up & Dn

N

Y

N

N

N

N

N

N

N

N

Y

Y

Y

Y

Y

Y

Y

LINE CLEAR

S22

BHATATIRA TIHIRI GURUDASPUR

DnUp

1T

S2 S2

S1 S1 S17

BAXT 1T

2T 1T

BAXT

Bhatatira TihiriSignals S1 RECR up

S22 RECR upS1 RECR UpS2 RECR Up

Track Circuits

1T UpBAXT Up

1T Up2T Up

BAXT UpZR1 Up, ZR2 Up, ZR3 Up

LINE CLEAR

Establised?

Up FSS &Dn LSS On?

LSSTC Free

Up & Dn FSS On?

FVT TC Free ?

BLOCKAXTs Free?

BLOCKAXT?

LINEBLOCKED?

GRANT

LINE CLEAR

REQUEST GRANT

LINE CLEAR

REQUEST GRANT

LINE CLEAR

REQUEST

GRANT

LINE CLEAR

REQUEST

Bhathatira

Reqest forLine Clear

Tihiri

Up & Dn

N

N

N

N

N

N

N

N

Y

Y

Y

Y

Y

Y

Y

Y

Direction

LINE CLOSED

CONDITIONS FOR LINE CLOSED

Bhatatira Tihiri

Signals S1 RECR UpS22 RECR Up

S1 RECR UpS2 RECR Up

Track Circuits

1T UpBAXT Up

1T Up2T Up

BAXT UpZR1 UpZR2 UpZR3 Up

SEQUENTIAL RELAY PROVING

FOR TRAIN ARRIVAL @ TIHIRI

ZR1 Up ZR2 Up ZR3 Up

BAXT Dn2T Dn1T DnS2 SET

BAXT Dn2T Up1T Dn

BAXT Up2T Up1T Up

S22

BHATATIRA TIHIRI GURUDASPUR

DnUp

1T

S2 S2

S1 S1 S17

BAXT 1T

2T 1T

BAXT

BLOCK WORKING IMPLEMENTATION

• Block Control Chart• Application Data design & Logic

CONCLUSION

• Showcase – Integration of Absolute Block Working with

Interlocking Controllers at Wayside stations– Centralized Remote Operation

• Traffic operations are found to be economical & efficient– Less manpower & NMS– Throughput, Fleet mode

• Marginal cost - next phase of expansion– 30MTPA freight traffic – Current Year– 57MTPA freight traffic – Year 2020

WAY AHEAD

• 15% Electronic Interlocking Systems in IR (880/5944 block stations)

• Multiple Vendors– Requirement for Networking Standards

for interoperability for Centralised Monitoring & Opeartion

Dhamra Line – CTC Working

Any Questions?

Dhamra Line – CTC Working

Thank You