sswt siss renewals survey

ABOUT ANDOVER RAILWAY STATION
Andover Railway Station is on the BAE1 line between Grateley and Whitchurch Station at 66m418y. It has 2 platforms which are adapted to manage 9 car trains. There are 2 main line running rails operating a mostly stopping service with interspersed fast trains. Platform 1 is 219m and platform 2 is 223m long according to the sectional appendix.

Platform 2 is on the south side which is the main entrance side, trains from this platform go west to Salisbury and Exeter. Through a step free subway is platform 1 which is an island platform, trains from here go east to Basingstoke and London. There are also 2 disused platforms, one is a bay platform on the east side of platform 2 and the other is on the other side of the island to platform 1 which is only occasionally used to link with the depot at Ludgershall.

Through the whole length of the subway linking platform 1 and 2 exists 50mm x 50mm trunking attached at high level on both sides, one side is clearly used for the subway lighting, capacity of both could not be determined (see photos 1 and 2).

The both platforms have high level trunking in the canopys but available space could not be determined. There is however, plenty of room to attach new trunking within both platform canopy’s (see photos 3 and 4).

The SISS equipment is located in the ticket office on platform 2, there are two equipment racks, one is a half size 1 metre rack on the floor and the other is a small wall mounted rack, both are full. The ticket office has a total lack of floor space, the only option for an additional rack would be to replace the 1 metre rack with a full size 2 metre rack and relocate the existing equipment into it (see photos 5 and 6).

In the ticket office is a small distribution board that feeds both racks, there are four available circuit breaker spaces left for any additional equipment (see photo 7). Power enters this room from trunking above the door, this trunking goes all the way back to the main power room on platform 2 on the other side of the ramp down to the subway (see photos 8 and 9).

The SISS on the station consists of one double sided ANDU on platform 2 and two double sided ANDU on platform 1, one is above entrance to waiting room, within the waiting room is also a small customer information screen.

ACCESS/EGRESS
Access to both platforms is through the main entrance from either the car park or direct from the road. The main entrance takes you out onto platform 2 and platform 1 is reached via the subway.

There are 262 parking spaces and 4 disabled spaces available.

** 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
1187 Andover Station Node at 66M 350Y
Node type 16B co located with GSM mast

This Node is located on the east end of platform 2 and is co-located with a GSM mast.

** 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	The existing SISS equipment is in the ticket office, there is very little room here, suggest replace smaller floor mounted rack with 2 metre rack and re-locate existing equipment.
Internal/external housing required	Internal
Station trunking suitable	Some supplementary work required to interconnect to routes toward the node.
External ducting segregated	Trunking within the subway looks to be segregated , under platform ducting needs inspecting, this was a non-intrusive survey so no cable chambers were inspected, these exist along platform 2.
External ducting clear/roped/accessible	Unknown but all trunking is in reasonable condition, assume rodding and roping will be required for ducts under platform 2.
Power supply suitable	Within the ticket office there is a distribution board which appears to serve existing small SISS equipment racks, there are four spare ways.
ET&I records obtained	Within main power room there is a record folder.
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	No drainage issues evident.
Listed building / heritage issues	None advised by TOC.
Noise abatement issues	None advised by TOC.
Pedflow and changes of function	None advised by TOC.
Issues left behind by previous projects	None advised by TOC.
Issues with exit from station to lineside	Route exists under length of platform 2 to line side east and west.
Any local issues, affecting subsequent work	Sizeable car park at station, Parking is metered and monitored agreement with TOC required for works parking.

** CIS RACK IMAGES

** SUMMARY
Existing SISS equipment is located in the ticket office, this office is very congested, there are two members of staff in this room who complain at the lack of space and general congestion of this room.