sswt siss renewals survey

** ABOUT BEDHAMPTON RAILWAY STATION
Bedhampton railway station is on the WPH2 line between Hilsea and Fratton at 38m 14c. It has two short platforms which manage 6 car trains over two lines which are mostly stopping interspersed with fast trains. The length of platforms are as follows; platform 1 - 148m; platform 2 - 124m according to the sectional appendix.

The station is fairly dilapidated with one Gladstone style building as a ticket office on Platform 2 which looks run down and is only open at morning peak.  The overbridge connecting platforms 1 & 2 is of old design with worn trunking and the trunking capacity could not be determined.

The SISS is located in an external cabinet on platform 2 but access to this was not obtained. Generally a station of this size would have adequate space for additional equipment in the rack if the existing equipment were reorganised.

There are electrical cabinets on both platforms 1 & 2 at the Up end but the capacity could not be determined due to the inability to gain access.

The SISS on the station consists of ANDUS on the platforms.

There is no parking at the station and travel is suggested by train from Fratton.

ACCESS/EGRESS
Via Authorised Walking Route – 82 MP + 528 yds, via Park sidings

NEAREST NODE/JUNCTION
2235 Hastings 82m291y actually shown as 82+201may be behind signal box in park sidings check again.
The original node location mileages were inaccurate the node is adjacent to park sidings at ATH 82.15 approx or TTH 62.52. The authorised walking route is correct as the access point; this is the signallers access to the signal box from park sidings.

NEAREST JOINT
F-ADIC-BPJC-A-32 - Node section 2236-2235  (ADIC-BPJC)
Location OS ref 581197/109595 - TTH 62MP + 394m Up Hastings

NODE INTERCONNECTION OPTIONS
The nearest node (Hastings station node 2235) which is supposedly at 82m201y according to asset data, as built records photos put it behind the signal box in the sidings adjacent to the station, this required re-checking and was located at approximately 82+330y.
On the approach to Hastings tunnel, is the nearest fibre cable joint that is not directly associated with the node itself.

...if interconnecting to the node
Utilise equipment room trunking to exit the SISS equipment room at high level to the concourse area, identify or install interconnection via the platform approach area to the down cess adjacent to platform 1 where this an S&T route travelling in the down TTH/Up ATH direction towards the signal box and ORE. Approximately 250 yards in this direction is a UTX to the opposite cess, utilise this for interconnection to the opposite cess (UP ATH/DN TTH). Investigation is required into the function of the route in the opposite cess if E&P install new route for 180m approx to the location of node 2235 in the UP ATH cess behind park sidings. Interconnect at the respective ODF.

...if interconnecting at the fibre joint
The joint is in the up cess on approach to the tunnel, approximately 70 yards Hastings side of the tunnel, hence the first route would be via station trunking through the wall from the equipment room and ticket office to high level trunking to the station overbridge which has high level tray to and down along platform 3 and 4. Currently there is no clear duct route from the platform to the down side trough route, so it should be assumed that a new ducted route will be required from the platform to the down side cess to interconnect to the down side route and from there the run to the sidings of 200m or so to the node.

The second and alternative route would be to locate the duct route from the equipment room to the car park (the alternative to this is to use the tray into the plant room and use the plant ducting out to the car park route) then from the car park route towards the gated entrance of the old p-way accommodation. From behind the gate, new duct route to the fence line behind platform 2 and SCT to the Road rail access point on the opposite side of the rail over road bridge and continue towards the Hastings tunnel portal, locate the fibre joint above.

The signal box is at the down end of platform 4, the FTN node (2235) is approximately 250m in the Up Ore direction in the up cess adjacent to Park Sidings. No obvious UTX in evidence between platform 4 and the up Ore cess but the station signalling services must get across to the signal box, so there will be something in the vicinity but local knowledge will be required to nail this element down if diversity is sought at this end of the station.

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	External
Station trunking suitable	Some supplementary work required to interconnect to routes toward the node.
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, however there does seem to be an excess of moisture in the subway which would require attention.
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

SUMMARY
For the purposes of maintenance, and what would look to be a less problematic cable run, look to interconnect at the node ODF, adjacent to park sidings.
Node section diagram extract showing node, fibre and cable run