sswt siss renewals survey

ABOUT WEYBRIDGE RAILWAY STATION
Weybridge railway station is on the BML1 line between Walton-On-Thames and Byfleet & New Haw and to Woking via Addlestone Junction at 19m12y. It has three platforms which are adapted to manage a 10 car train on platform 1 and 12 car trains on platforms 2 and 3. There are four main line running rails of which the inner are fast and the outer are mostly stopping interspersed with fast trains. Platform 1 is a bay platform and appears to act as a platform for turning trains round back toward Addlestone, or as an overflow for the other main platforms. Platforms 1 is 212m, platform 2 is 233m and platform 3 is 251m long according to the sectional appendix.

The station is of fairly recent construction and the walking route between platforms is via an overbridge from the booking hall which is at the same level. There is sufficient trunking through the overbridge but the capacity could not be determined on this survey. There are routes to all platforms from the overbridge for SISS cabling.

Much of the station platform canopy area is served by high level trunking, however this could not be ascertained if there was any spare capacity.

The SISS room is located external to the booking hall area in the same location as the mains electrical intake for the station. The room has sufficient space to house an additional cabinet or alternatively a taller replacement cabinet could be installed to accommodate new equipment.

The SISS on the station consists of ANDUS on both platforms and small TFT NTI displays in the booking hall area. These do cause congestion at the gateline as they are difficult to read from a distance.

That the node is within reach of the station a diverse route may be possible but a few issues to overcome as outlined above.

Surface concrete trough (SCT) cable route exists to the rear of platform 4 on the opposite side of the station to the station building and hence equipment room. A short section of SCT is in the up cess prior to the road rail access to the up end of the station after the old p-way accommodation, but this doesn’t interconnect to any other sections of route.

ACCESS/EGRESS
Access to all platforms is via the overbridge.

The node equipment at 19m966y is via a gate towards the end of the car park and then via the cess to the equipment cabinet.

The is sufficient car parking at this station.

NEAREST NODE/JUNCTION
The nearest node is located down from platform 1, although there is a closer junction to the station.
Fibre Node 2407 @ 19m956y

NEAREST JOINT
Fibre Joint @ 19m566y

NODE INTERCONNECTION OPTIONS
The node (2407) cabinet is on the other side of the tracks at Addlestone junction and a favourable route would prove difficult. The fibre junction is easily accessible and SCT (Surface Concrete Troughing) is available into the station. The SCT was not surveyed.

The route from the SCT to the station seems accessible and from the SCT into the station requires tray up and into the SISS room.

An alternative has not been proposed as this would take the similar route as from the junction but add difficult route from the REB on the opposite side of the tracks.

RISK MATRIX CHECKLIST	NOTES & RISKS
Equipment room suitable for node	The room is suitable for an additional cabinet but a replacement taller rack would be preferable in this situation.
Internal/external housing required	Internal.
Station trunking suitable	Some supplementary work required to interconnect to routes toward the node.
External ducting segregated	It appeared that the power ran down platform 3 and the data down platform 1/2 which would suggest segregation.
External ducting clear/roped/accessible	Unknown, assume rodding and roping will be required particularly from the platform 1 extension to the SISS equipment room.
Power supply suitable	Although ET&I unavailable the mains electrical intake is located in the same room as the SISS equipment.
ET&I records obtained	Not all records available at the electrical room.
Power supply residual issues from ET&I	Unlikely but subject to ET&I documentation
Vandalism issues	None advised by TOC.
SSSI issues	None advised by TOC.
Other environmental issues e.g. rodents	None advised by TOC.
Existing support structures suitable	SISS equipment utilise standard fixings.
Existing guttering and drainage suitable	There does not appear to be any canopy drainage issues, however there does seem to be an excess of moisture in the subway which would require attention.
Listed building / heritage issues	None advised by TOC.
Noise abatement issues	None advised by TOC.
Pedflow and changes of function	Staff advise that during peak there is some congestion at the gateline due to the size of the NTI displays overhead.
Issues left behind by previous projects	None advised by TOC.
Issues with exit from station to lineside	Possible tray/ducting required to lineside as capacity not confirmed and some supplementary work to existing route.
Any local issues, affecting subsequent work	Large car park with access to lineside.

CIS RACK IMAGES

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©FONEALARM

SUMMARY
For the purposes of maintenance, and what would look to be a less problematic cable run, we would look to interconnect at a node joint, adjacent to the station car park.