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SimSig Salisbury ASC

Introduction

Welcome to the SimSig Salisbury ASC simulation.

I selected this as I was born within a mile of the station, and also spent many an hour as a young boy in the 1960s watching M7 no 30033 performing station pilot duties in the P5 bay area from the upstairs window of my Grandmother's house in Churchfields Road.

Acknowledgments

My thanks must go to:-

  • Geoff Mayo, for allowing me the privilege of becoming a developer, and Peter Bennet for showing me the basics of sim construction;
  • Chris Lord (aka LardyBiker) for allowing me to assist on developing his next sim after South Humberside and teaching me how sims are built;
  • Howard Potter and Paul Curran for patiently doing many sim compilations, and guidance on bugs and fixes;
  • Noel Young and Pascal Nadin for the TTs without too much gratuitous shunting (so far!);
  • Kev Meredith for ably testing the simulation and TTs, not only for testing but advice on layout and features.
  • The rest of our testing team, Neil B, Matt C, Mark J, Dave McC, Jameses N & W, Ben W.
  • Danny Scroggins for permission to use his photographs of the panel.

    Salisbury Panel

  • James Underwood, for most of the splash shots.
  • Anyone else I've unintentionally overlooked.

Outline

:simulations:sypanel.png

Salisbury is located on the (ex-L&SWR) South West main line from London to Exeter (via Woking, Basingstoke, Andover, Salisbury, Yeovil and Honiton).

The line from Southampton to Westbury joins to the east at Tunnel Jn, and diverges towards Warminster to the west at Wilton Jn.

The original double track line from Wilton to Honiton & Exeter was singled in 1967.

Note that the Westbury-Salisbury line direction is Down towards Salisbury, ie opposite to the other routes within the simulation.

Fringes

Salisbury ASC Fringes with adjacent areas as follows:-

  • Basingstoke, at Grateley (trains enter from Andover);
  • Eastleigh, near Dunbridge (trains enter from Romsey);
  • Gillingham, beyond Tisbury;
  • Westbury , east side of Warminster (trains enter from Warminster), chains with Westbury simulation.

Traffic

Mainly passenger these days, the main service being Waterloo to Exeter St Davids (operated by SWT), but other services between Portsmouth/Southampton and Bristol/Cardiff are also seen passing though Salisbury.

The Waterloo-Salisbury-Exeter service features units being detached/attached at Salisbury.

Speeds are generally:

  • Andover to Salisbury 90mph, 40mph through Fisherton Tunnel;
  • Salisbury to Gillingham 85mph;
  • Romsey to Salisbury 85mph (a short 35mph length east of Laverstock south Jn);
  • Salisbury to Warminster 75mph.

Note there is a severe curve at the east end of Salisbury Station (scene of the 1906 accident ), which has PSRs of 20mph Up and 30 mph Dn.

Salisbury Station

There are now 4 platforms in use, all with PP (Permissive Passenger) working authorised:

  • P2 Up main
  • P3 Down Loop line.
  • P4 Down main
  • P6 East Bay

Note that P3 & P4 are signalled for Bi-Di working.

The station entrance leads directly onto P4, with access to P2/3 via a subway; note that P4 is the Down Main and P3 is the loop line.

(P1 is the Reception Line, platform is OOU , P5 is not currently used for passengers),

Holding Siding is the line below P5.

East Carriage Sidings are right of P6 (lower #2 line currently OOU)

The main SWT Train Depot is located to the west/left end of the reception line.

East yard is off the through siding between 212 & 215, access from the up end (signals 214 & 213) only.

The ASC is located in the old L&SWR building near to P6/P4, as shown on the panel.

Scenarios and Start-up Options

Scenarios

Platforms shut: P2, P3, P4, P2 & P3

Various platform closures, P2 & P3 both closed simulates the passenger subway being flooded and the island platform closed, will be very restricted with only one platform available for through trains.

Tisbury Loop closed

Careful working will be required as it will be single line from Wilton to Gillingham, albeit with the ability to send 2 trains in the same direction. Expect delays!

Start-up Options

  • Eras - 1980, 2000

  • TORR - On/Off

  • Scale of problems - Beginner/Standard/Difficult/One of those days/Gremlins at Work/TT Developer

  • Difficulty - Easy/Standard Easy mode has extra TD berths shown, whereas Standard represents the real panel as far as possible.

  • TSRs (Temporary Speed Restrictions) - None/One/All

  • LX Calls (Calls from level crossing users) - None/Rare/Common

Features

Tokenless Block working

A special form of Tokenless Block working is utilised between Salisbury-Tisbury-Gillingham, a detailed explanation of which can be found at http://www.trainweb.org/railwest/gen/signal/tkblock.html .

Either signaller has to offer a train due to travel over the single line, with the other end having to accept before any route can be set over the section (akin to slots ). Once the train enters the section, the block indicators will move to Train in Section (TiS). After the train exits the section and the Accept switch is restored to Normal, and the signaller is satisfied it has arrived complete, (s)he presses the 'Train Arr' button to restore the block instrument to 'Normal'. Please refer to Detailed Operational Notes for a detailed explanation.

Originally Salisbury worked to Tisbury only, but now fringes to Gillingham, so for Salisbury-Tisbury working you offer the train to yourself!

Level Crossings

AHBs

at Wylye, Upton Lovell and Codford (Westbury line), Dean, Dean Hill and Dunbridge (Romsey/Southampton line), and Tisbury West (Exeter line).

There are also various UWCs and footpath crossings.

Dunbridge and Dean AHBs have stopping/non-stopping controls for down trains only. The green/orange buttons can be toggled as required, then press 'Set' to initialise. When the train passes the protecting signal, the 'SET' button will cancel ready for the next train. The 'Set' button can be cancelled by use of the emergency replacement button (ERS), with care!!

Dunbridge AHB is also fitted with an approaching train alarm, see detailed operational notes for full information.

Tisbury AHB can be protected by holding Gillingham's GM28 signal at danger by use of the ERS button provided above the AHB.

Simulation Operation

Scrolling shortcuts:

  • - Keys 1,2,3 scroll left to right;
  • - {Shift} +

    D,S,T,W scroll to Dean, Salisbury, Tisbury, Wylye.

Signal numbers

The display of the main signal numbers can be toggled on/off by left/right clicks on the button below Salisbury Station.

Salisbury

  • TRTS provided on P2 & P6 (up), P3 & P4 (Up & Dn);

  • P5 is not currently in passenger use;
  • Shunter's Release (SR) is required for trains into the main depot (SR F), Through Siding (SR A - required in the Up direction only), East Yard (SR B in the Up direction and SR C in the Down direction) and E Carriage Sdgs (SRs D and E for sidings 1 and 2 respectively).

Ground Frames

The green lines on the panel indicate the points controlled by each GF release. See Ground Frames for full details of Releases and levers.

Wilton Jn

There is an 8 lever GF adjacent to Wilton Junction to control movements to/from the Quidhampton Lime sidings (now out of use from July 2011).

Release 312 allows use of the siding, with Release 311 also permitting use of the crossover as required.

Dinton Jn

There are a pair of GFs at Dinton, which although simulated, have been OOU for some time and the sidings disconnected.

Dean Hill MoD

Gave access to a large Ordnance storage facility, now OOU.

Dean Engineer's Siding

A plain siding.

East Grimstead Sidings

Access to a pair of sidings, together with a trailing crossover. Release 305 allows use of the siding, with Release 304 permitting use of the crossover as required.

Wylye Emergency GF

Emergency reversing GF, the points are simulated, but not any hand signalling nor adjacent AHB controls.

Operational Notes

- Up trains approaching Gillingham will be displayed for 10 minutes prior to due entry time;

- An Annunciator warns of trains entering from Romsey and not stopping at Dunbridge Station so that the non-stop control can be set;

- Signal 40 needs route set AND track clear through 36 to signal 34 before it will clear (to avoid a train being detained at signal 36;

- Trains sent to East C.S. can be moved to/from either of the 2 sidings as follows:-
a) to send to #1 request SR D, to #2 SR E, when the SR is given simply route to the common exit arrow;
b) to bring a train out, key the hand points N or R as required then set the route away from the appropriate shunt signal.

Timetable Notes

Note which trains are booked into the passing loop at Tisbury; also note that the loop is east of the station, there being only the one platform now (the loop at Tisbury is 385m long).

Trains can be turned at Laverstock Triangle, but can only be done via South Jn rev then to North Jn rev.

Reference

Supplied Timetables

Timetable Year Version Era Author Notes
Summer 1988 'The Withered Arm' 1988 V1.0 1980 Pascal Nadin Random day of week
15 Oct 2009 {"Groundhog Day"} 2009 V1.0 2000 Noel Young Also 0445 start time
will chain with other 15/10/09 WTTs

Other Timetables

Timetable Year Version Era Author Notes
Weekday 2015 2015 V1.0 2000 Andrew James (kaiwhara) &
Tim Squires (Temple Meads)
Download

See the website Download section for user-supplied timetables.

Detailed Operational Notes

Ground Frames

Signal Routes

Locations

Splash Shot Details

Salisbury Paths diagramSalisbury mapSalisbury.kmz zip file

Google Earth overlay showing signal, point and other feature locations (in zip file as kmz file type not permitted - download and extract out kmz file that opens in Google Earth.

Resignalling Scheme plan

Cabride Salisbury to Bristol Temple Meads 1986

Cabride Salisbury to Exeter St Davids 1987

Statistics
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Version History

TCs Points Signals Routes TD Berths
196 61 115 110 75

Version 1.1 (released 18/05/2015)

- Fixes issue with 1980 Era (Dinton GFs);

- Fixes minor issue after chaining with Westbury.

Version 1.0 (released 07/05/2015)

First release. No known issues.


Last edited by AndyG on 14/01/2017 at 01:38