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| ==[http://www.cbrd.co.uk/histories/ringways/ringway3/ Ringway 3]== | | ==[http://www.cbrd.co.uk/histories/ringways/ringway3/ Ringway 3]== |
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| {{Col-begin}}
| | See [[:Category:Ringway 3]]. |
| {{Col-2}}
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| ;Abercrombie's D-Ring as precursor
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| :[[MT 106/413]] includes written confirmation that several sections used D-Ring protected lines
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| :[[MT 95/85]] includes plans of the D-ring at locations that match known routings of Ringway 3
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| ;GLC discussing only three ring roads
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| {{Col-2}}
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| ;Ringway 3 as route for long-distance traffic
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| :[[MT 106/413]], related to 'D-Ring' being constructed entirely as motorway in 1966
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| ;Ministry plan for Outer Orbital motorway M45
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| :[[MT 112/67]]
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| {{Col-end}}
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| ----
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| ===[http://www.cbrd.co.uk/histories/ringways/ringway3/north.shtml Northern Section]===
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| {{Col-begin}}
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| {{Col-2}}
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| ;Route, M1 - Bignell's Corner
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| :''This line is a best-guess and no source documents whatsoever have been found for an official line between Bushey and Bignell's Corner. However, there are some Geographia maps with a potential route on them.''
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| ::''M31 Consultants' Report'' has outline of route, although it does not quite reach Bignell's Corner
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| ;Route, Bignell's Corner - Potter's Bar
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| :As built before 1973
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| ;Route, Potter's Bar - A12
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| :As planned before 1973
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| ;Unbuilt junction at A11
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| :[[T 319/2655]] includes plans of this
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| {{Col-2}}
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| ;Use of M16 designation before opening
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| :[[T 319/2655]] has plans of "M16 motorway" between A10 and M11, which match precisely what is now M25
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| ;Use of temporary A1178 number
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| ;Incorporated into full-circle M25
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| {{Col-end}}
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| ----
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| ===[http://www.cbrd.co.uk/histories/ringways/ringway3/east.shtml Eastern Section]===
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| ;Route, A12 - A20
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| :[[AT 56/98]] confirms that what is now M25 between M11 and Dartford was programmed as Ringway 3/M16 | |
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| ----
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| ===[http://www.cbrd.co.uk/histories/ringways/ringway3/south.shtml Southern Section]===
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| {{Col-begin}}
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| {{Col-2}}
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| ;Route, A20 - Addington
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| :[[MT 120/169]] has outline route
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| ;Route, Addington - Thames
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| :[[MT 120/169]] includes outline route
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| ;Alternative route, Addington - Chessington
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| ;Consultants still investigating routes in 1971
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| :[[MT 120/272]] indicates possible routes between M4 and A20 under investigation, in memo dated September 1971
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| {{Col-2}}
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| ;Newspaper report concerning "final route"
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| :[[HLG 159/1318]] indicates a plan was published in ''Sutton and Cheam Advertiser'', 23/07/1970, but so far we have been unable to track down that particular edition of this newspaper
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| ;No final route ever selected
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| :[[MT 120/272]] and [[HLG 159/321]] both suggest the route was with consultants in 1971, and the final report of their findings was not due
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| ;Engineering standards
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| :[[MT 120/272]] indicates urban dual-4 alignment changes to rural dual-3 at a grid line on the plans in the absence of detailed study on where the change should occur
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| {{Col-end}}
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| ----
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| ===[http://www.cbrd.co.uk/histories/ringways/ringway3/west.shtml Western Section]===
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| {{Col-begin}}
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| {{Col-2}}
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| ;Route, Thames - M3
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| ;Route, M3 - M4 - Yeading
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| ;Route, options at Yeading
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| ;Route, MoT option Yeading - South Oxhey
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| :Check (same as GLC route)
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| ;Route, GLC option Yeading - South Oxhey
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| :Check (same as MoT route)
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| :[[MT 106/291]] for 1964 route through Stanmore and Harrow to M1 junction 3
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| ;Ministry line v GLC line
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| :Settled in favour of Ministry line before GDLP inquiry, ''The Times, 13-03-71''
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| :[[HLG 159/321]] has report comparing the two options
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| {{Col-2}}
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| ;R3 connecting to M3 junction 1
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| ;R3 connecting to M3 at new junction at Upper Halliford (inc. reserved land and property dispute)
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| :[[MT 120/169]]
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| ;Cost comparison of Ministry and GLC route options
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| :[[HLG 159/321]], including GLC argument that their line was "more accessible"
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| ;Previous plans for D-Ring and to link M1 and Heathrow by dual carriageway
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| :[[MT 106/291]]
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| ;Memo indicating urban or rural motorway standard
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| :[[MT 106/413]]
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| ;File suggesting route number M16 between A4020 and M1
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| :[[MT 106/118]]
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| :''[http://hansard.millbanksystems.com/written_answers/1972/nov/07/road-programme#S5CV0845P0-04286 Hansard, 07-11-72]''
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| ;Ringway 3 still at least partially in roads programme in 1977
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| :''[http://hansard.millbanksystems.com/written_answers/1977/apr/05/road-schemes Hansard, 05-04-77]''
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| {{Col-end}}
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| ----
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| ==[http://www.cbrd.co.uk/histories/ringways/ringway4/ Ringway 4]== | | ==[http://www.cbrd.co.uk/histories/ringways/ringway4/ Ringway 4]== |