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ELRRouteSectionRemarks
DACExeter and Devonport (or Devon and Cornwall) LineCowley Bridge Jn to St Budeaux JnUnderstood to be disused between Meldon Viaduct (~199M 0900y) and Bere Alston (~220M 0550y)
DAE1Darlington and Eastgate-in-Weardale LineDarlington Parkgate Jn to Shildon South Jn
DAE2Darlington and Eastgate-in-Weardale LineShildon South Jn to Wear Valley Jn
DAE3Darlington and Eastgate-in-Weardale LineWear Valley Jn to Eastgate
DANDanygraig BranchBurrows Jn to DanygraigUnderstood to be disused
DAPBarrow Avoiding LineDalton Jn to Park South Jn
DAT1Widnes Train Care DepotDitton Marsh [1]
DAT2Widnes Train Care DepotDitton Marsh [2]
DBP1Birmingham and Derby LineLondon Road Jn to Kingsbury Jn
DBP2Kingsbury and Water Orton LineKingsbury Jn to Water Orton East Jn
DBP3Birmingham and Derby LineWhitacre Jn to Proof House Jn (via Water Orton)
DCFDown Cambridge Flyover
DCLDidcot and Chester LineDidcot to beyond Cannock Road Jn
DDBDevonport Dockyard BranchKeyham (or Dockyard) Jn to Devonport Dockyard
DDYDoncaster Down YardDecoy North Jn to Bridge JnDown Side Sidings
DECDidcot East CurveDidcot East Jn to Didcot North Jn (via Avoiding Line)
DEXDerbyshire Extension BranchRectory Jn to Cotgrave Colliery to Gedling CollieryUnderstood to be part closed
DFNDufftown BranchKeith Jn to NR boundaryContinues onto Keith & Dufftown preserved railway
DHFDenbigh Hall FlyoverDenbigh Hall South Jn to Flyover Jn
DJHNorth Lancashire LineDaisyfield Jn to Hellifield Jn
DJO1Oldham, Ashton, and Guide Bridge LineDenton Jn to Crowthorne Jn
DJO2Oldham, Ashton, and Guide Bridge LineCrowthorne Jn to former Ashton Moss South Jnformer Ashton Moss South Jn to former Ashton Moss East Jn understood to be disused
DJPCambrian Coast LineDovey Jn to Pwllheli
DJWWirksworth BranchDuffield Jn to Wirksworth InclineUnderstood to be part closed
DLODarnall DepotUnderstood to be disused
DLSDuddeston Jn to Lawley Street Goods Depot
DMYWinchburgh LoopWinchburgh Jn to Dalmeny Jn
DOCKing’s Lynn Dock LineKing’s Lynn Dock Jn to King’s Lynn Docks
DOL1Doncaster and Leeds LineDoncaster Marshgate Jn to Wakefield
DOL2Doncaster and Leeds LineWakefield to Holbeck East Jn
DOL4Doncaster and Leeds LineGelderd Road Jn to Leeds West JnUnderstood to be disused
DOWDoncaster to Wrawby LineMarshgate Jn to Wrawby Jn
DPJformer Dudley Jn to Pleck JnUnderstood to be part closed
DPSDidcot Power StationUnderstood to be part closed
DRA1Drax Power StationApproach Tracks
DRA2Drax Power StationMerry-Go-Round Loop
DRS1Dewsbury Goods BranchDewsbury East Jn to 0M 20Ch
DRS2Dewsbury Goods BranchDewsbury 0M 14Ch to 0M 27Ch
DRS3Dewsbury Goods BranchELR change to Dewsbury Railway Street Goods YardUnderstood to be part closed
DSDDinting ChordDinting South Jn to Dinting East Jn
DSELiverpool and Manchester Exchange LineEdge Hill Jn to Manchester Victoria
DSN1Darlington and Saltburn (or Tees Valley) LineDarlington South Jn to Eaglescliffe South Jn
DSN2Darlington and Saltburn (or Tees Valley) Lineformer Eaglescliffe North Jn to Redcar
DSN3Darlington and Saltburn (or Tees Valley) LineRedcar to Saltburn
DSSEuston Carriage DepotDown side
DSYWestbury Sidings YardDown side
DUYDoncaster Up YardPotteric Carr Jn to Bridge Jn
DWCDidcot West CurveDidcot West Curve Jn to Foxhall Jn
DWSHope Valley LineDore West Jn to Dore Station Jn
DWW1Dalston West Jn to WoolwichDalston Jn to Navarino Road Jn
DWW2Dalston West Jn to WoolwichNavarino Road Jn to North Woolwich
DWYDoncaster Wood Yard Sidings