John Towers
Technical Manager
Layer 2 Intelligence Pty Ltd
• Sydney’s first Tram services were originally delivered in
the mid 1800’s
• Propulsion evolved through the generations st...
•Cut-back, ‘light’ versions of signalling and Train
Control used on the NSWGR.
•Signal boxes used fixed block working & on...
•Dedicated corridor
•Used for getting large numbers of people between key nodes.
•Route options, traffic can move around i...
PreemptiveprioritytoLightRail
VehiclesatRoadintersections
VitalSignalling/Vehicle
MovementControl
Vehicle-to-Ground
commun...
CENTRAL
CAPITOLSQ
EXHIBITION
CONVENTION
PYRM
ONT
BAY
STAR
JOHN
ST
SQ
FISHM
ARKET
W
ENTW
ORTH
PK
In 1997, a revamped Darlin...
CENTRAL
CAPITOLSQ
EXHIBITION
CONVENTION
PYRM
ONT
BAY
STAR
JOHN
ST
SQ
FISHM
ARKET
W
ENTW
ORTH
PK
• Vehicle management consi...
CENTRAL
CAPITOLSQ
EXHIBITION
CONVENTION
PYRM
ONT
BAY
STAR
JOHN
ST
SQ
FISHM
ARKET
W
ENTW
ORTH
PK
CENTRAL
CAPITOLSQ
EXHIBITION
CONVENTION
PYRM
ONT
BAY
STAR
JOHN
ST
SQ
FISHM
ARKET
W
ENTW
ORTH
PK
Advantages:
• Cheap
• Easy...
CENTRAL
CAPITOLSQ
EXHIBITION
CONVENTION
PYRM
ONT
BAY
STAR
JOHN
ST
SQ
FISHM
ARKET
W
ENTW
ORTH
PK
In the year 2000, some unn...
Nothing really changed…..
• Further fixed block signalling was installed. This was again
augmented with ATP
• Additional C...
GLEBE
JUBILEE
PK
ROZELLE
BAY
LILYFIELD
CENTRAL
CAPITOLSQ
EXHIBITION
CONVENTION
PYRM
ONT
BAY
STAR
JOHN
ST
SQ
FISHM
ARKET
W
...
 TETRA
 P.25 phase II
 GSM-R
 802.11a/b/g/n
 WiMAX
 LTE
Apply SIL at critical junctions, turnouts, turnbacks, in
dedicated corridor etc. This can be done either in
headend softwa...
Customer Centric (Stops & Onboard):
• Passenger Information Displays
• Public Address (but only for safety and emergency
s...
The Australian Tourism & Transport Fund Transport Position paper, “The benefits of light rail.” March 2010
"Fact Book Glos...
John Towers, Layer 2 Intelligence - Light rail communications & signalling requirements: assessing the Sydney Light Rail E...
John Towers, Layer 2 Intelligence - Light rail communications & signalling requirements: assessing the Sydney Light Rail E...
John Towers, Layer 2 Intelligence - Light rail communications & signalling requirements: assessing the Sydney Light Rail E...
John Towers, Layer 2 Intelligence - Light rail communications & signalling requirements: assessing the Sydney Light Rail E...
John Towers, Layer 2 Intelligence - Light rail communications & signalling requirements: assessing the Sydney Light Rail E...
John Towers, Layer 2 Intelligence - Light rail communications & signalling requirements: assessing the Sydney Light Rail E...
John Towers, Layer 2 Intelligence - Light rail communications & signalling requirements: assessing the Sydney Light Rail E...
John Towers, Layer 2 Intelligence - Light rail communications & signalling requirements: assessing the Sydney Light Rail E...
John Towers, Layer 2 Intelligence - Light rail communications & signalling requirements: assessing the Sydney Light Rail E...
John Towers, Layer 2 Intelligence - Light rail communications & signalling requirements: assessing the Sydney Light Rail E...
John Towers, Layer 2 Intelligence - Light rail communications & signalling requirements: assessing the Sydney Light Rail E...
John Towers, Layer 2 Intelligence - Light rail communications & signalling requirements: assessing the Sydney Light Rail E...
John Towers, Layer 2 Intelligence - Light rail communications & signalling requirements: assessing the Sydney Light Rail E...
John Towers, Layer 2 Intelligence - Light rail communications & signalling requirements: assessing the Sydney Light Rail E...
John Towers, Layer 2 Intelligence - Light rail communications & signalling requirements: assessing the Sydney Light Rail E...
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John Towers, Layer 2 Intelligence - Light rail communications & signalling requirements: assessing the Sydney Light Rail Extension

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John Towers, Technical Manager, Layer 2 Intelligence delivered the presentation at ARA’s Telecommunications & Train Control Conference 2014.

The ARA’s Telecommunications & Train Control Conference 2014 brought together passenger and freight rail operators, transport agencies, track owners, regulators and technology suppliers to assess telecommunications solutions and explored the capabilities of a shared future.

For more information about the event, please visit: http://bit.ly/traincontrol14

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John Towers, Layer 2 Intelligence - Light rail communications & signalling requirements: assessing the Sydney Light Rail Extension

  1. 1. John Towers Technical Manager Layer 2 Intelligence Pty Ltd
  2. 2. • Sydney’s first Tram services were originally delivered in the mid 1800’s • Propulsion evolved through the generations starting with horse drawn, steam and finally electric. •Over a 100 year period, the service supported the Sydney economy, with every local averaging greater than one journey per day and the majority of CBD freight carried by the service.
  3. 3. •Cut-back, ‘light’ versions of signalling and Train Control used on the NSWGR. •Signal boxes used fixed block working & on single lines staff & ticket working were used.
  4. 4. •Dedicated corridor •Used for getting large numbers of people between key nodes. •Route options, traffic can move around incidents with the assistance of a ‘Controller.’ •Often less frequent (certainly the case for Sydney Trains network) •Mixed & pedestrian traffic (and hence, integrated ‘management’) •Frequent, fast, managed by headway •In Sydney, we have less variation in route options •Cheaper CAPEX, and as the standard gauge track is most common, maintenance equipment is readily available •Rollingstock is smaller, narrower hence lower axle weights •More reliance on the driver in route selection.
  5. 5. PreemptiveprioritytoLightRail VehiclesatRoadintersections VitalSignalling/Vehicle MovementControl Vehicle-to-Ground communications ClosedCircuitTelevision SystemControl&DataAcquisition Onboardsystems PassengerInformationSystems Low headway times       Drive on sight    Flexible Vehicle configurations   Hi passenger counts, low dwell times   Few route options   Mixed traffic      Secure/Safe  Dedicated corridor   System LightRailTarget
  6. 6. CENTRAL CAPITOLSQ EXHIBITION CONVENTION PYRM ONT BAY STAR JOHN ST SQ FISHM ARKET W ENTW ORTH PK In 1997, a revamped Darling Harbour freight line was opened as the first light rail network in Sydney for over 40 years. The line consisted of a mixed traffic portion between Central Station & Darling Drive, with dedicated corridor between Darling Drive and Wentworth Park.
  7. 7. CENTRAL CAPITOLSQ EXHIBITION CONVENTION PYRM ONT BAY STAR JOHN ST SQ FISHM ARKET W ENTW ORTH PK • Vehicle management consisted of fixed Block signalling along the dedicated corridor with vehicle management using Automatic Train Protection. • Route requests by exception • On shared road-rail corridor, Light Rail Vehicles were fitted with fixed transponders which allowed them higher priority at intersections, on arrival. • Telecommunications services consisted of SCADA, CCTV, Long Line Public Address, Help Points and Passenger Information Displays carried over an Multi Mode Optical fibre backbone. • Open channel, talk-through radio for LRV-to-ground communications
  8. 8. CENTRAL CAPITOLSQ EXHIBITION CONVENTION PYRM ONT BAY STAR JOHN ST SQ FISHM ARKET W ENTW ORTH PK
  9. 9. CENTRAL CAPITOLSQ EXHIBITION CONVENTION PYRM ONT BAY STAR JOHN ST SQ FISHM ARKET W ENTW ORTH PK Advantages: • Cheap • Easy modification to existing intersection control • Reliable – If the tag fails, the intersection will still phase in favour of the LRV. • No change to existing maintenance objects Disadvantages: • No LRV pre-emption • No ability to ‘track’ vehicles through the shared corridor • Bus on rails
  10. 10. CENTRAL CAPITOLSQ EXHIBITION CONVENTION PYRM ONT BAY STAR JOHN ST SQ FISHM ARKET W ENTW ORTH PK In the year 2000, some unnamed, large international event, possibly, drove the extension of the Light Rail Corridor & Service from Wentworth Park to Lilyfield. It could be hypothesised that this was seen as a way in which to connect the Western distributor arterial road to Central Sydney – but, who really knows. GLEBE JUBILEE PK ROZELLE BAY LILYFIELD
  11. 11. Nothing really changed….. • Further fixed block signalling was installed. This was again augmented with ATP • Additional CCTV installed at platforms for situational awareness • More SCADA RTU’s installed • Help Points & PA by Jacques • Passenger Information Display’s GLEBE JUBILEE PK ROZELLE BAY LILYFIELD CENTRAL CAPITOLSQ EXHIBITION CONVENTION PYRM ONT BAY STAR JOHN ST SQ FISHM ARKET W ENTW ORTH PK In my opinion, the emphasis was on getting the railway built and operational. Gaps were created, such as the Glebe Tunnel, which would require remediation in the future.
  12. 12. GLEBE JUBILEE PK ROZELLE BAY LILYFIELD CENTRAL CAPITOLSQ EXHIBITION CONVENTION PYRM ONT BAY STAR JOHN ST SQ FISHM ARKET W ENTW ORTH PK LEICHHARDT NTH HAW THORNE M ARION ST TAVERNERSHILL LEW ISHAM W EST W ARATAH M ILLS ARLINTON DULW ICH GROVE DULW ICH HILL
  13. 13.  TETRA  P.25 phase II  GSM-R  802.11a/b/g/n  WiMAX  LTE
  14. 14. Apply SIL at critical junctions, turnouts, turnbacks, in dedicated corridor etc. This can be done either in headend software or at trackside interlockings. OR Not Again, Light Rail is light and in the majority of cases, line of sight. The driver should determine whether it is safe to move their vehicle.
  15. 15. Customer Centric (Stops & Onboard): • Passenger Information Displays • Public Address (but only for safety and emergency situations) • Help Points • Security (CCTV) Control & Awareness: • SCADA • CCTV
  16. 16. The Australian Tourism & Transport Fund Transport Position paper, “The benefits of light rail.” March 2010 "Fact Book Glossary - Mode of Service Definitions". American Public Transportation Association. 2013. Retrieved 2013-11-12 “BOStrab German Fedral Regulations on the construction and operation of light rail transit systems.” May 2008. “Tram-to-tram collision Yarra Trams Intersection Flemington Road and Abbotsford Street North Melbourne 03 September 2010 (Report No. 2010/08).” Office of the Chief Investigator Transport Safety. “ETSI EN300 392-2 v3.2.1” “Budget Paper No. 4, Infrastructure Statement 2014-15.” NSW Government “State Significant Infrastructure Assessment: CBD & South East Light Rail, Sydney. Secretary’s Environmental Assessment Report.” Jun 2014.

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