PENZANCE CONTROL

Map

Contents

Introduction
Layout
Screen Display and Movement Control
Notes on Specific Locations
Timetable and Stock Working
Locomotive Types and their Use
Getting Started
Finishing/ Pausing
Penzance Traffic Workings Table

Introduction

Penzance is the south-western terminus of the West of England mainline from Paddington, and in this simulation, set on a Summer Saturday in 1984, you are the Duty Traffic Assistant in the control room on Penzance station faced with the task of directing all train movements in the area during the day. You have to deal with arriving locomotives and stock, the assignment of locomotives to their next duty, and above all must strive to get the scheduled departures off on time.

The situation is complicated by additional holiday workings, late running trains, locomotives needing fuel or attention, and a shortage of platform space at peak times, and to make matters worse your every instruction is being monitored by Regional Control at Paddington as part of an efficiency study.

Layout

diagram

The main features of the railways in the Penzance area are shown schematically above.

The approach is along the shore of Mount's Bay from Harazion, and there is a potential bottleneck here in that the mainline is singled for a distance of about 1.5 miles as it runs from Longrock to the beginnings of the station complex at the base of Chyandour Cliff. An adjacent line serves the coaching stock yard at Ponsandane and the new service depot for High Speed Trains (HSTs) at Longrock, and there is an additional loop at Eastern Green used by Empty Coaching Stock (ECS) en route to the station.

The terminus at Penzance has three main covered platforms, with an outside subsidiary platform used primarily for parcels traffic, relief trains and stock with a long turnround time. Alongside are the 'Flower Bays', which take their name from the heavy springtime traffic from the Scillies but which in summer are used as the principal locomotive stabling area following the severance of the lines to the old diesel fuelling point adjacent (locomotives now having to trip to the HST depot at Longrock for fuel or attention). The bay area is controlled by manually operated points from the bay head reception and departure line, which itself has what is effectively a locomotive headshunt in the form of sidings alongside the seawall.

Screen Display and Movement Control

The locations of all locomotives and available stock in the Penzance area are shown on a movement control console, with a display which is automatically updated once a minute. Details of the next arrival are given near the top of the screen, and there is also a reminder of the times and destinations of the next three departures.

screen shot

To obtain a status report on a locomotive or to direct a movement you must first obtain control by pressing the space bar, and then in response to a prompt enter the number of the locomotive or HST set concerned. A report on the condition of the locomotive will then be given at the bottom of the screen. You may return to the simulation at this stage without penalty by pressing the Return key, or may alternatively initiate a movement by entering the two letter code of the desired new location. This should in general be adjacent to the present location (see diagram, the main exception being certain through movements past the Ponsandane line hold position), and of course have space to accept the new locomotive. Inadmissable movements or movements which conflict with previously initiated directives are signified by a buzzer, and these will contribute penalty points to your end of shift assessment.

Notes on Specific Locations

PY - Ponsandane Yard

Only the shunter (08644) is allowed to marshal train formations in the yard and to work in and out with coaching stock. You will be notified when the shunter is required for duties in the yard, and should endeavour to return it there at the first available opportunity.

To move the next available stock out of the yard, ensure that the ECS loop is empty, and with the shunter available type the destination code EL (if the shunter is at work in the yard it must first summoned by re-entering as the next location the yard code PY1).

To move the shunter alone out of the yard type PL to move it to the Ponsandance line hold position, or EL to back onto stock already in the ECS loop.

LD - Longrock Depot

HSTs are cleaned and serviced here overnight in a new purpose built shed. Locomotives should be sent to the depot only when they require fuel, examination or the rectification of defects, and with the depot capacity being limited to just four units they should be returned to the bay area for stabling or assignment to other duties as soon as practicable when they become available after attention.

Whilst HSTs or locomotives are on the depot their status is indicated by the following codes:

Locomotives leaving the depot may travel as light engines to the Ponsandane line hold position (PL), or alternatively may back onto waiting stock in the ECS loop (EL).

HSTs running empty from the depot to the station area can similarly travel via either the PL or EL provided that the desired line is completely clear of other traffic.

PL - Ponsandane Line

The Ponsandane line is the service line liking the station complex to Longrock depot and Ponsandane yard. At the Western end of the line there is a locomotive hold position, and this is used by locomotives and HSTs running from the depot to the station, by the shunter moving from the yard to the station or manoeuvring around stock in the ECS loop, and by locomotives shuttling between the platforms and the bay head. The hold position need not be specified as an intermediate destination if the final destination is either LD, PY or EL from the station area, or one of the platforms from the ECS loop.

EL - Empty Coaching Stock Loop

After being pulled into the loop from Ponsandane yard by the shunter, empty stock must be backed from here into its departure platform.

This can be achieved by running the shunter around first (type RR with PL clear), or by the shunter leaving the stock in the loop (type PL to move on to other duties) to either itself return later from Ponsandance yard or to allow a locomotive released from Longrock depot to come onto what will be its departure stock and back it into the station

Stock already in a station platform from an incoming train may be temporarily moved to the ECS loop by the shunter provided there is more than 20 minutes to its scheduled departure time, this manoeuvre allowing the original train locomotive trapped at the buffers to be released early if so desired.

The loop may also be used by HSTs running between Longrock depot and the station as an alternative to going via the PL hold position

P1 to P4 - the Station Platforms

Mainline arrivals can be directed into one of the four terminus platforms as soon as you receive notification that the train concerned is approaching Longrock (if no action is taken the train will be held at the signals east of the single track section awaiting further instructions).

Trains which are locomotive hauled may use a platform with a locomotive from an earlier arrival still trapped at the buffers, but HSTs require a completely free platform so that they can be coupled to electrical shore lines near the buffer stops, enabling their power car engines to be shut down (platform 4 is not equipped with this facility and thus should not be used by HSTs scheduled for a subsequent departure working).

Locomotive hauled trains will automatically have the train engine uncoupled, and when this has been done either the shunter or the locomotive for the departure working may be attached to the other end of the train. No attempt should however be made to move recently arrived stock until sufficient time has been allowed for unloading (typically 10 minutes for standard passenger trains and up to 30 minutes for other workings).

Locomotives are directed onto the stock of their next departure by directing them into the platform from either PL or SW. Once attached, trains must depart with that locomotive.

Locomotives may be moved from the buffer end of platforms by re-entering the platform location (P1 to P4) as a direction movement, and then the onward destination in a subsequent movement.

Locomotive Stabling Areas

BH - Bay Head

the throat of the bays, with capacity for two locomotives. If desired locomotives can be moved from one of the two slots to the other by re-entering the BH code.

B1, B2, BE - Flower Bays and the Bay End

Principal locomotive stabling points between duties. Motorail stock is also parked at the end of either B1 or B2 during the day (see later).

SW - See wall sidings

Only used as a headshunt in this simulation

Timetable and Stock Working

Your turn of duty is a double shift from 0500 hrs in the morning to 2100 hrs in the evening, at which time you hand over to the night supervisor to deal with the few remaining late night arrivals. The schedule of arrivals and departures during your shift is given in the
Traffic Workings Table, where an asterisk denotes an additional or relief working.

Stock for departures originating from Penzance should be brought down from Ponsandane with adequate time allowed for passenger loading (the departure time of coaching stock being labelled in Ponsandane yard, whilst HSTs are automatically assigned to the next HST departure when they arrive in the platform). The next working of incoming stock is shown a few minutes after the train arrives in the platform, although this information is of course also given earlier in the next arrival slot.

Motorail Services

One working requiring special handling is the overnight motorail service from Paddington, which because of traffic demand is diagrammed to run as a separate train rather than the more normal practice of coming down with the newspapers and returning as part of the Night Riviera.

When the train arrives it should be directed into one of the platforms as usual. The shunter should be attached after the train locomotive has uncoupled, and the vans may then be moved to the end of either B1 or B2 for unloading by typing the appropriate location code with PL, BH and the chosen bay clear of other traffic.

The motorail vans are left in the bay during the day ready for loading for the return working in the evening, and may have locomotives stabled along with them.

Towards departure time the selected train locomotive should be put next to the motorail stock and then coupled up by typing the special code MR. Departure is directly from the bay at the appointed time using the ML code as usual (dotted line path shown on diagram).

Locomotive Types and their Use

Individual locomotives are referred to by their British Rail running numbers, which are a coded classification with the first two (or in the case of HSTs, three) digits giving the locomotive class and the remaining three digits the number within the class (with sometimes the most significant of these denoting a particular subclass). The following types appear in the simulation:

Class 08 - Standard shunter - 350hp - max speed 15mph

There is just a single shunter based at Penzance, and this acts as both yard and station pilot. During the summer of 1984 the shunter was 08644 and was adorned with unofficial 'Debbie' nameplates, rumoured to refer to the ladyfriend of one of the shunting staff.

Class 45 and 46 - Mainline locos - 2500hp - max speed 90mph

Introduced between 1960 and 1963, these locomotives are derived from the original 'Peak' class. They are all Midland and Eastern region engines which reach the south-west on through holiday workings. During 1984 the 45/1 subclass were the commonest of the Peaks on these trains, with indeed class 46s quite rare as the class was run down prior to withdrawal at the end of the year. The locomotives should be diagrammed to return home on the through workings to the midlands and north, and only in the most exceptional circumstances should a Peak be allocated to a Paddington train.

Class 47 - Mainline locos - 2580hp - max speed 95mph

The veritable workhorses of British Rail, the 47/4 subclass (numbers 47401-617) are the standard mainline passenger locomotives of the whole system. The 47/0 subclass (47001-299) are designated as mixed traffic locomotives, and are often pressed into summer passenger service on reliefs and holiday workings. Most are un-named, although some of the Western region's allocation are named after famous GWR personalities such as Brunel.

Class 50 - Mainline locos - 2700hp - max speed 100mph

The pride of the Western region, these locomotives were named after famous Royal Navy warships after their transfer from the Midland region in the mid 1970s. The locomotives have recently undergone a major programme of refurbishment at Doncaster works, and as the top rank locomotives are allocated whenever possible on all non-HST services from Penzance to Paddington. 50007 was somewhat of a novelty in 1984, being repainted in imitation GWR livery and renamed 'Sir Edward Elgar' in preparation for the GWR 150 year celebrations.

Class 253 - High Speed Trains - 4500hp - max speed 125mph

The units working to Penzance are standard Western region sets with a power car at each end of a seven coach formation. Although the high speed of the units can only be utilized at the Paddington end of the line, these trains have improved enormously the standard of service on the whole of the West of England mainline. Split into three groups, 253001-018 and 253028-040 are used on internal Western Region services, whilst 253041-055 are used on inter-regional workings to the north east and north west.

Home Depots

The home maintenance depots of the locomotives in the simulation are given after the locomotive number in the status message using the following standard codes:
Western Region Other Regions
BR Bristol BS Bescot (Birmingham)
CF Cardiff CD Crewe
LA Laira (Plymouth) GD Gateshead (Newcastle)
OC Old Oak Common (London) HA Haymarket (Edinburgh)
PZ Penzance IM Immingham
WR Western Region HST depots
at Old Oak, Laira and
St. Philip's Marsh (Bristol)
TO Toton (Nottingham)

You have a relatively free hand in allocating locomotives to trains, but only in exceptional circumstances should a locomotive requiring fuel or attention be dispatched on a departure working. You should keep in mind the comments on locomotive usage made earlier, and if possible give locomotives at least an hour turnaround time at Penzance.

In addition you should try to allocate non-Western region locomotives to the following workings which are diagrammed for through haulage to their destinations (other services to the north changing motive power at Birmingham):

Emergencies

From time to time an emergency message may be received from Regional Control requesting the dispatch of a locomotive, either for use at another depot or to assist a failed train down the line. Such requests should be complied with as soon as possible.

Getting Started

The simulation starts a few minutes before the nominal commencement of your shift with an HST waiting in PL to come into the platforms, the shunter in BH (but requested for work in PY), a class 50 hauled passenger train in P4 soon to depart, three HSTs stabled at LD, and three locomotives parked in the bay areas (with the one in BE requiring fuel).

An initial sequence of movements might be:

Finishing or Pausing

At the end of your turn of duty you will be given a rating of your performance on a scale up to excellent.

If you wish to finish your shift early, the simulation may be terminated by pressing ESCAPE, but you must have completed at least 64 minutes to receive a rating.

If only a temporary respite is required we recommend freezing the action on a status report or movement command directive.

Penzance Traffic Workings Table

Arrivals
Departures
Due Train Next Working Time Destination Stock from
0527 * 1915 ex York 0646 Newquay ECS 0505 Plymouth PY
0544 Plymouth (parcels) ECS PY 0628 Paddington (HST) LD
0625 Paddington (mail) ECS PY 0646 +* Newquay (ECS) 0527 arrival
0654 Paddington (newspapers) ECS PY 0725 Paddington (HST) LD
0710 * Paddington (motorail) Bays for unloading 0740 Glasgow PY
0748 Night Riviera (sleeper) ECS PY 0835 Paddington (HST) LD
0805 2357 ex Paddington 0932 Paddington 0853 + Newcastle PY
0843 2217 ex Manchester 1125 Manchester 0910 Leeds PY
0901 2315 ex Liverpool 1035 Leeds 0932 Paddington 0805 arrival
1029 0825 ex Plymouth 1105 Paddington 1000 Liverpool PY
1133 Paddington (parcels) ECS PY 1020 Paddington (HST) LD
1200 0630 ex Worcester (HST) 1235 Paddington 1035 Leeds 0901 arrival
1243 * 0751 ex Bristol (ECS) 1415 Wolverhampton 1050 Brighton PY
1307 0743 ex Paddington (HST) 1340 Paddington 1105 Paddington 1029 arrival
1317 * 0621 ex Wolverhampton 1520 Wolverhampton 1125 + Manchester 0843 arrival
1358 0845 ex Paddington (HST) 1448 Paddington 1235 Paddington (HST) 1200 arrival
1433 0750 ex Swansea 1540 Paddington 1340 Paddington (HST) 1307 arrival
1456 0717 ex Derby 1600 Derby 1350 Bristol (parcels) PY
1528 0940 ex Paddington 1615 Paddington 1415 * Wolverhampton (relief) 1243 arrival
1548 1045 ex Paddington (HST) 1700 Paddington 1436 Paddington (relief) PY
1642 Cornish Riviera (HST) ECS LD 1448 Paddington (HST) 1358 arrival
1709 0914 ex Brighton ECS PY 1520 * Wolverhampton 1317 arrival
1753 0936 ex Liverpool ECS PY 1540 Paddington 1433 arrival
1804 1245 ex Paddington (HST) ECS LD 1600 + Derby 1456 arrival
1824 0921 ex Leeds ECS PY 1615 Paddington 1528 arrival
1919 * 1330 ex Paddington (relief) ECS PY 1700 Paddington (HST) 1548 arrival
1929 1210 ex Liverpool (HST) 2013 Laira ECS 1815 Plymouth PY
1946 0922 ex Newcastle ECS PY 1921 * Paddington (motorail) Loading in bays
2010 1345 ex Paddington ECS PY 2013 Laira (HST ECS) 1929 arrival
2042 1445 ex Paddington ECS PY 2030 * Paddington (relief) PY
2101 1545 ex Paddington (HST) ECS LD 2045 Night Riviera (sleeper) PY
* Denotes additional train to the normal working timetable
+ Denotes trains diagrammed for non-WR motive power

this Software

Converted from a BBC BASIC file to a RISC OS application, complete with sprites file and this help file, for use with !Graphtask by Ewen Pring 2005-03. CAPS LOCK must be on.