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Signalling Notices

(1988)



SUNDAY 27 MARCH - WEST HIGHLAND RADIO ELECTRONIC TOKEN BLOCK - SOUTH COMMISSIONING - BETWEEN CRAIGENDORAN JUNCTION AND UPPER TYNDRUM AND CRIANLARICH AND TAYNUILT - The work described in the Special Notice entitled
"WORKING OF WEST HIGHLAND LINE -
ISSUED TO INCORPORATE SOUTH END COMMISSIONING OF RADIO ELECTRONIC TOKEN BLOCK WORKING BETWEEN CRAIGENDORAN JUNCTION AND UPPER TYNDRUM, AND CRIANLARICH AND TAYNUILT" dated 27 March 1988, will be introduced.

NOTE: that the Sectional Appendix 'Table A' and Local Instructions for the whole of the West Highland lines, incorporating the alterations resulting from the RETB commissioning are also published in the Special Notice.

Stations and Depots with trainmen working through the area not having received the Special Notice must advise the Regional Operations Manager, ScotRail House, Glasgow by telephone (041-2603/2280).


SPECIAL NOTICE

PERMANENT WAY AND
SIGNALLING ARRANGEMENTS

WORKING OF WEST HIGHLAND LINE


ISSUED TO INCORPORATE THE SOUTH END
COMMISSIONING OF RADIO ELECTRONIC TOKEN BLOCK WORKING
BETWEEN CRAIGENDORAN JUNCTION AND UPPER TYNDRUM
AND CRIANLARICH AND TAYNUILT

(THIS NOTICE NEED NOT BE ACKNOWLEDGED)

J.M. SUMMERS
Regional Operations Manager
March, 1988
GLASGOW



WORKING OF WEST HIGHLAND LINES
COMMISSIONING OF RADIO ELECTRONIC TOKEN BLOCK
CRAIGENDORAN JUNCTION TO TYNDRUM UPPER AND CRIANLARICH TO TAYNUILT

OPENING ARRANGEMENTS

The altered permanent way and signalling arrangements described herein will be brought into use on Sunday 27 March, 1988.

DESCRIPTION OF SCHEME

Garelochhead, Glen Douglas, Arrochar & Tarbet, Ardlui, Crianlarich, and Dalmally will be closed as block posts and working by the Electric Token Block System on the routes Craigendoran to Tyndrum Upper, and Crianlarich to Taynuilt will be dispensed with. Craigendoran box will control the area between Craigendoran and Helensburgh Upper. Banavie signalling centre will control the area between Helensburgh Upper and Tyndrum Upper, and between Crianlarich and Taynuilt. Tyndrum Upper will be renamed Upper Tyndrum, the signal box will control the Up loop and Banavie SC will control the Down loop.

METHOD OF WORKING

The line between Bridge of Orchy and Upper Tyndrum Up loop stop board will be worked in accordance with the Electric Token Block System controlled by Upper Tyndrum box. The line between Oban and Taynuilt Up loop stop board will be worked in accordance with the Electric Token Block System controlled by Taynuilt box.

The line between Craigendoran and Helensburgh Upper station will be worked in accordance with the Track Circuit Block System controlled from Craigendoran box. The line between Helensburgh Upper station and Upper Tyndrum Down loop stop board, and between Crianlarich and the Down loop stop board at Taynuilt will be worked in accordance with the Radio Electronic Token Block System, controlled from Banavie signalling centre, with token exchange points at:-

Helensburgh Upper
Garelochhead
Glen Douglas
Arrochar
Ardlui
Crianlarich
Upper Tyndrum
Fort William Junction (formerly Mallaig Jn)
Tyndrum Lower
Dalmally
Taynuilt

All ground frames will be controlled by the Annett's key provided on each locomotive and engineer's machine. Shut-in facilities will be provided at each ground frame operated siding.

All lineside telephones situated between former block posts will be removed.

Emergency BT telephones to Banavie SC will be provided at Garelochhead, Glen Douglas, Arrochar, Ardlui, Crianlarich, Upper Tyndrum, Tyndrum Lower, Dalmally, and Taynuilt.

SIGNALLING ARRANGEMENTS

Craigendoran

The token exchange stool at Criagendoran box will be removed.

Helensburgh Upper

A new Up direction two aspect colour light signal, capable of displaying a red or green aspect, will be provided on the single line at the Craigendoran end of Helensburgh Upper platform on left of drivers. The signal, controlled by Craigendoran box will be plated C652 and apply To signal C640. Associated A.W.S track equipment and a telephone with a diagonal black and white striped sign will be provided. A notice board worded "End of Radio Token Working" will be provided at signal C652. An Up direction reflectorised distant board will be provided on left of drivers, 1430 yards from and on the approach to signal C652. Associated A.W.S track equipment will be provided.

A Down direction notice board worded "Stop - Obtain Token and Permission to Proceed", with an associated board worded, "Radio Token Working" will be provided at the Garelochhead end of Helensburgh Upper platform, on left of drivers. Associated A.W.S track equipment will be provided. A Down direction reflectorised distant board will be provided on right of drivers 700 yards from and on the approach to the notice boards. Associated A.W.S track equipment will be provided. A double-sided Station limits board will be provided 300 yards on the Garelochhead side of the notice boards.

Glen Douglas

The following supplementary boards will be provided:-

Facing to Up direction trains

"Drivers in possession of Long Section Token may proceed" - associated with the Up stop board.

Facing to Down direction trains

"Drivers in possession of Long Section Token may proceed" - associated with the Down stop board.

Ardlui

The following supplementary boards will be provided:-

Facing to Up direction trains

"Drivers in possession of Long Section Token may proceed" - associated with the Up stop board.

Facing to Down direction trains

"Drivers in possession of Long Section Token may proceed" - associated with the Down stop board.

Crianlarich

The plungers previously provided for the use of the signalman at the north end of the station at the end of the platform ramp, associated with the Down loop and Up loop "Point set" indicators, two plungers on each indicator post, will now become driver operated, under the instruction of the signalman at Banavie SC, as follows:-

Left-hand plunger
on each post 
- applies to the Oban branch.
"B" indication and yellow "Points set" light displayed when route set.
Right-hand plunger
on each post 
- applies to main West Highland line.
"M" indication and yellow "Points set" light displayed when route set.

(See Sectional Appendix, Local Instructions, as amended in this Notice, for operating instructions).

An override switch for the junction points, to be operated under the instructions of the signalman at Banavie SC, is located in a lockfast box beside the junction points.

The double-sided Station limits board located on the approach side of the Up direction branch "Points set" indicator will become single-sided, facing to Down direction trains. An additional single-sided Station limits board, facing to Up direction trains, will be provided 150 yards on the Dalmally side of the existing board

The Up direction board worded "Stop unless Permission to Proceed Obtained" situated on the branch line will be removed.

The 2-lever ground frame at the exit of the Timber Siding will become a 3 lever ground frame released by Annett's key. The Timber Siding will be redesignated Crianlarich Lower Siding.

Upper Tyndrum

The RCE siding will be secured out of use until further notice.

The following additional notice boards will be provided:-

Facing to Up direction trains

"Radio Token Working" at the Up loop Stop board.

Facing to Down direction trains

"End of Radio Token Working" at the Down loop Stop board.

Tyndrum Lower

The following boards will be provided, on left of drivers except where otherwise stated:-

Facing to Up direction trains

"Stop-Obtain Token and Permission to Proceed", with supplementary board worded "Drivers in Possession of Long Section Token may proceed" - at Crianlarich end of platform.

Reflectorised distant board - 1695 yards from and on the approach to the Up stop board.

Facing to Down direction trains

"Stop - Obtain Token and Permission to Proceed", with supplementary board worded, "Drivers in Possession of Long Section Token may proceed" - at Dalmally end of platform.

Reflectorised distant board - 842 yards from and on the approach to the Down stop board, on right of drivers.

A.W.S track equipment will be provided 200 yards on the approach to each distant board

Double-sided Station limits boards will be provided 440 yards from and on the Crianlarich side of the Up Stop board and 440 yards from and on the Taynuilt side of the Down stop board.

Taynuilt

The following additional notice boards will be provided:-

Facing to Up direction trains

"Radio Token Working" at the Up loop Stop board.

Facing to Down direction trains

"End of Radio Token Working" at the Down loop Stop board.

RADIO CHANNELS

The extent of the area covered by each radio channel is as follows:-


RADIO CHANNEL
NUMBER
FROM TO

109 Eastfield Dumbarton Central Stn
 
125 Dumbarton Central Stn 12½ MP - Between Garelochhead and Glen Douglas
 
105 12½ MP - Between Garelochhead and Glen Douglas Ardlui
 
108 Ardlui Upper Tyndrum
 
108 Ardlui 39 MP - Between Tyndrum Lower and Dalmally
 
104 Mallaig Jn Loch Eil OB
 
112 Loch Eil OB Beasdale
 
126 Beasdale Mallaig Station
 
109 39 MP - Between Tyndrum Lower and Dalmally 53.3/4 MP - Between Loch Awe Taynuilt (Pass of Brander)
 
121 53 3/4 MP - Between Loch Awe and Taynuilt (Pass of Brander) 65 MP - Between Taynuilt and Connel Ferry

Renaming of block post and junction

Mallaig Jn signal box and Mallaig Jn will be renamed Fort William Junction signal box and Fort William Junction respectively.