sswt siss renewals survey

ABOUT CLANDON RAILWAY STATION
Clandon railway station is on the NGL line between Horsley and London Road (Guildford) at 25m550y. It has 2 platforms which are adapted to manage 10 car trains. There are 2 main line running rails operating a mostly stopping service with interspersed fast trains. Platforms 1 and 2 are both 205m long according to the sectional appendix.

The station is of old construction and the walking route between platforms is via a concrete overbridge. There is sufficient trunking through the overbridge but the capacity could not be determined on this survey.

Much of the station platform area is served by high level trunking through the platform canopy and concourse area.

The current SISS equipment room is located behind the ticket office with access from the station platform. The room currenlty has staff lockers utilising any spare space.

The SISS on the station consists of ANDUS on both platforms and TFT NTIs.

ACCESS/EGRESS
Access to the station is via walk ways to both platforms and via a concrete overbridge.

Access to both copper and fibre node joint is via the authorised walking route in the up cess from platform 2.

NEAREST NODE/JUNCTION
The nearest fibre node is located up from platform 2.
Fibre Node 2301 @ 24m83y

NEAREST JOINT
The nearest copper joint is just off the down end of platform 2.
Fibre Joint F2300 @ 25m874y
Copper Joint C2301 @ 25m805y

NODE INTERCONNECTION OPTIONS
The nearest node joint is a long distance on the up line and would prove expensive to run additional cable to the station. The two options available would be to make a connection to the copper joint at the up side of platform 2 or make a connection to the fibre joint also at the up side of platform 2.

...if interconnecting at the existing fibre joint
The joint is 324y on the up and there is tidy SCT (surface concrete troughing) as far as the survey would permit. The route from the end of the platform would cable pull through existing platform ductng and connects to a new internal cabinet located behind the ticket office.

...if interconnecting to the copper joint
This would be the same as if connecting to the fibre joint only a shorter cable run off the platform by 69y.

RISK MATRIX CHECKLIST	NOTES & RISKS
Equipment room suitable for node	There is only an external cabinet which could not be surveyed due to access.
Internal/external housing required	Internal inside mess room on platform 2.
Station trunking suitable	Some supplementary work required to interconnect to routes toward the joint.
External ducting segregated	It was not clear from the survey if the ducting is segregated.
External ducting clear/roped/accessible	Unknown, assume rodding and roping could be required along platform 2 extension to the overbridge.
Power supply suitable	ET&I unavailable.
ET&I records obtained	No 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 station staff.
SSSI issues	None advised by station staff.
Other environmental issues e.g. rodents	None advised by station staff.
Existing support structures suitable	SISS equipment utilise standard fixings
Existing guttering and drainage suitable	There does not appear to be any canopy drainage issues.
Listed building / heritage issues	None advised by station staff.
Noise abatement issues	None advised by station staff.
Pedflow and changes of function	None advised by station staff.
Issues left behind by previous projects	None advised by station staff.
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	Adequate car park.

CIS RACK IMAGES

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©FONEALARM

SUMMARY
The differences in effective cost between pulling an additional 69y for a fibre cable against a copper cable is negligable cmpared tot he versatility of the fibre connection and the future proofing of data to the station.

The fibre joint is the first choice for conneting data to this station.