OS One Inch 7th Series map coverage

Talk about items you find on SABRE Maps - interesting features, historic road layouts etc. Also contains announcements of new maps available on SABRE Maps.

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Robert Kilcoyne
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Re: New project for 2018 - OS One Inch 7th Series map coverage

Post by Robert Kilcoyne »

Steven wrote: Sat Nov 17, 2018 11:15 It's the 1963 Revision B of the London NW sheet. I really like this one - it has the eastern terminus of the M4 Slough Bypass, the (now M4) Chiswick Flyover, the M1 Aldenham Temporary Terminal and all sorts of other goodies.
The road numbering around Slough and Windsor is interesting, in particular the A331 running through Windsor Great Park and Datchet to the eastern terminus of the M4.

Further north, the B486 through Water End and Piccotts End to Hemel Hempstead would subsequently become an A road (A4146) only to revert to B road status in this decade but gain a different number (B440).
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vlad
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Re: New project for 2018 - OS One Inch 7th Series map coverage

Post by vlad »

Robert Kilcoyne wrote: Sat Nov 17, 2018 13:27 The road numbering around Slough and Windsor is interesting, in particular the A331 running through Windsor Great Park and Datchet to the eastern terminus of the M4.
It had been doing that since the 1920s - the original A331 (Windsor - Ditton Park) ran from Windsor to the A4 east of Slough. As the M4 was built on top of part of it they had to build a new all-purpose road which was later renumbered as part of the B470.
"If you expect nothing from somebody you are never disappointed." - Sylvia Plath

From the SABRE Wiki: A331 (Windsor - Ditton Park) :

The A331 was a short A-road running east of Windsor.

The road started to the north of Windsor town centre on the original line of the A332, which continued north from the junction to cross the now-unclassified Windsor Bridge.

Heading east, the road passed under the castle and ran through the Home Park before crossing the River

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