Centralised Traffic Control Working On Dhamra line of

Centralised Traffic Control Working On Dhamra line of ECo. R P. Venkata Ramana, Senior Professor (Signal) Indian Railway Institute of Signal Engg & Telecommunication, Secunderabad Railway Convention on 3 Cs Systems Manekshaw Convention Centre, New Delhi 28 th & 29 th August, 2015

DHAMRA PORT BAY OF BENGAL

DHAMRA LINE Ranital Link Bhatatira Bhadrak Tihiri Gurudaspur Bansara Dhamra

DHAMRA LINE

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

SYSTEM OF WORKING • 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 • 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

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

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

BLOCK WORKING Steps Involved • Establishment of Direction of Traffic • Obtaining ‘Line Clear’ • Closing of Block Section

DIRECTION SETTING Bhattathira Signals S 1 RECR Up S 22 RECR Up Track 1 T Up Circuits BAXT Up Tihiri Gurudaspur S 1 RECR Up S 2 RECR Up 1 T Up 2 T Up BAXT Up S 2 RCER Up S 17 RECR Up 1 T Up BAXT Up

DIRECTION SETTING

LINE CLEAR Signals Track Circuits Bhatatira S 1 RECR up S 22 RECR up 1 T Up BAXT Up Tihiri S 1 RECR Up S 2 RECR Up 1 T Up 2 T Up BAXT Up ZR 1 Up, ZR 2 Up, ZR 3 Up

LINE CLEAR

LINE CLOSED CONDITIONS FOR LINE CLOSED Signals Track Circuits Bhatatira Tihiri S 1 RECR Up S 22 RECR Up S 1 RECR Up S 2 RECR Up 1 T Up BAXT Up 1 T Up 2 T Up BAXT Up ZR 1 Up ZR 2 Up ZR 3 Up SEQUENTIAL RELAY PROVING FOR TRAIN ARRIVAL @ TIHIRI ZR 1 Up ZR 2 Up ZR 3 Up BAXT Dn 2 T Dn 1 T Dn S 2 SET BAXT Dn 2 T Up 1 T Dn BAXT Up 2 T Up 1 T Up

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 – 30 MTPA freight traffic – Current Year – 57 MTPA 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