Now whilst I agree that the route he is proposing
Warrington - M42/M5 junction via Whitwood
Is a good idea & are say we could all come up with a few suggestions of our own ie
A motorway from Dover to Penzance (M27?)
A12 converted to mtorway along it’s entire length from the M25
A47 Motorway along it’s entire length
A14 motorway along it’s entirw length
A new outer ring road around London running approx 15 outside the M25 radius but only having junctions for M20,M23,A3,M3,M4,M40,M1,M11,A12,A13 only 10 junctions would make it an expressway around & not into London.
Are just a few that pop into my head immediately but getting back to the original topic If you wanted to relieve the congestion on the M6 (or indeed any other motorway or trunk road) why not double deck it?
I can forsee a number of advantages in this idea
Double capacity without digging up any “vigin” land
No rubber necking at accidents as the design I had in mind would have a solid section running where our current central reservation is with supports on pads located just off the hard shoulder.
you could make the top deck an expressway by putting far fewer junctions on it
A prime example could be the English section of M4
From the M25 if you only had :-
1 exit at slough
1 exit at Reading
1 exit at A34
1 exit at Swindon
1 exit at Bristol
1 exit at M5
Then merge for the tolls at the Servern crossing or even make the old crossing dedicated to the expressway only
The slip roads for these expressways could merge on the existing hard shoulders at Junctions
Just think how much time could be saved without the junction hoppers if this idea was used throughout the Motorway network
If you think it is pie in the sky (pun intended) then it’s not because we (the British) have already performed this engineering feat in Hong Kong before the Chinese took back control