
SECTIONAL APPENDIX - BARNHAM (SUSSEX)
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General                                     
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Barnham signalbox was built by the London, Brighton and South Coast Railway in 1911, to their design 3b, with a 75-lever frame of the LBSC 1905 pattern, with tappet locking. 

Signalling arrangements have been taken from the Signalling Record Society drawing of 1974. Abolute Block working is in use on all lines.

The adjacent boxes are:

Ford              2.7 mls
Woodgate Crossing 1.3 mls 
Bognor Regis      3.3 mls

Since that date, various changes have taken place, most notably the abolition of Ford and Woodgate Crossing boxes, their functions being taken over by Arundel and Chichester panels. Some semaphore signals have been replaced by colour lights.

Note that lever frame is positioned at the South side of the box and so, like the original, the track diagram is drawn with South at the top.


Electrification
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All lines are electified using the 750V DC third rail system.


Platform Lines and Sidings
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Permissive working is authorised on the Up Main platform line.

The capacity of each platform is 12 coaches. 

The Down sidings each hold a maximum of 16 coaches, or 32 wagons, plus one loco. The Up Siding loop, between crossovers 22 and 71, holds a maximum of 15 coaches (30 wagons), plus a loco. Note that trains from the Up Main must set back through crossover 22 to gain access to the Up Sidings.


Local Instructions
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Signal 65 may be cleared for trains from the Bognor branch to the Loop platform when signal 17 is at Danger, without the need for trains to be brought quite or nearly to a stand at the signal.


Operating Notes
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In operating the PC-Rail simulation, note the following:-

Timetabled coupling of Up passenger trains - use the Calling-on signal (48 or 56) to allow the second train to enter the platform, after the first portion has come to a stand. The trains will normally couple automatically.

Timetabled splitting of Down passenger trains - use the Train Uncouple facility when the train has come to a stand at Barnham station. The reporting number of the detached portion will normally be allocated automatically.

Barnham-Bognor shuttle trains - these are automatically redescribed with their new reporting numbers on terminating at Bognor, but must be manually redescribed at Barnham.


Motive Power and Stock
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Most trains are operated by electric multiple units. 

  
Train Reporting Numbers
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First Character (Train Class):

      1      Express Passenger  
      2      Ordinary Passenger       	
      3      Parcels  (Max. 90 mph+)  	
      4      Freight (Max. 65 mph+)      
      5      Empty Coaching Stock     	
      6      Freight (Max. 50-60 mph)    
      7      Freight (Max. 40-45 mph)    
      8      Freight (Max. 35 mph) 		
      9      Unfitted Freight  			
      0      Light Engine             	

Second Character (Route - between):
    
      C      London & West Coast line via Crawley
      E      Brighton & Worthing/Bognor/Littlehampton
      F      Bognor and Brighton & Seaford
      H      London & West Coast line via Hove
      M      To former L.M. Region 
      N      Brighton & Portsmth/Southampton/Bournemth
      O      To former Southern Region ex another region
      R      Littlehampton & Hastings
      S      To ScotRail
      V      To former Western Region 
      X      Out of gauge & exceptional loads
           

Light locos and empty coaching stock proceeding to/from a booked working may carry the headcode 0 or 5, followed by the last 3 characters of the train concerned.


Speed Restrictions
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Main lines            75 m.p.h.
Bognor Regis branch   70 m.p.h.
Branch to/from Main   20 m.p.h.
Other crossovers      15 m.p.h.
Ford Junction 
  - to Main           30 m.p.h.
  - to Littlehampton  40 m.p.h.
  

Variations from the Original
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The following features have been omitted:

    Facing point locks 49, 50, 60, 61, 69.

    Colour light signal 34 protecting Yapton Crossing.

Down Siding hand points shown as worked from lever frame (61).

Yellow shunt signal 23 shown as normal shunt signal.

Calling on signals 48 and 56 are shown as discs, rather than miniature arms.


Acknowledgement
---------------

Thanks to Robert Davies for providing background information to assist in completing this simulation.
