out of sequence and upset
the planned platform sharing.
Perturbation of passenger
traffic here can react onto the
Felixstowe branch. Similarly,
trains using the single-line
sections on the branch have to
run to path in order to avoid
reactionary delays elsewhere.
All this gives the signaller little
or no thinking time when things
go awry.
With the upcoming further
increase in traffic on the branch,
it was decided to provide a
new Alstom Modular Control
System (MCS) workstation.
This is positioned right in front
of the Ipswich NX panel, with
VDU screens low on the desk to
allow the Felixstowe signaller
to view trains approaching
from Ipswich station/yard and
coming around the chord from
the north.
The Felixstowe branch
hasn’t been completely
expunged from the NX panel.
Basic indications and train
descriptions alert the Ipswich
signaller to the approach of
traffic from the Felixstowe and
East Suffolk directions.
A new Smartlock 400
interlocking has been provided
to replace the previous Alstom
MkIIIA Solid State Interlocking
(SSI) and this aligns with
the jurisdiction of the new
workstation from the mid-point
between Boss Hall junction and
Westerfield, through to the
branch. Saxmundham signal
box MCS already controls
the East Suffolk line north of
Westerfield. The Smartlock
central interlocking processor(CIXL) contains two virtual
interlockings (VIXL), with a
geographical split between
Derby Road and Trimley.
The CIXL is connected via a
new FTNx link utilising Keymile
first-line multiplexers and Cisco
routers, interfacing the field
long distance terminals (LDT) at
a new location at Westerfield.
Here, the SSI data passes onto
the existing SSI trackside data
links.
Diverse routing was originally
provided by renting BT privateThorpe Lane MCB-OD
being tested out.Global Rail Construction Limited’s capability
supports the latest technology, management
and engineering know-how to deliver rail
projects and services to the highest standards
of quality and safety.
We offer our clients a service that helps them plan,
build and maintain their railway infrastructure. We have
the skills and experience to deliver multi disciplinary turnkey
design and construct projects. We work to meet and exceed
their needs on time and within budget. We understand the
importance of minimising disruption to their operations while
we work.
Working on mainline railways, metro systems and light
rail, we offer as a group a full in-house solution and
provide full design, build, test and commission services in
the following areas:Get in touch with us http://www.theglobalinfrastructuregroup.com
- Civil/Structural
Engineering and Building - Mechanical, Electrical
and Power- Signalling
- Telecoms
- Façade Solutions
t: +44 (0)1332 947500 e: [email protected]
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