Billion, I think you mean. But the full works of SEMMMS, including the connection through to the M60 at Bredbury and the Stepping Hill Link, and all junctions GSJ'd, would surely cost far more than that. Around £1.5bn, I'd say.

While we're at it, in the local area we could also have:

• A6144 Hardy Lane Extension
• Full GSJ'ing of the A5103 through from Northenden to the Mancunian Way
• A5300 southern extension to cross the Mersey and link up with the M56 near Helsby
• "M34" M6 relief road running approximately 10 miles further east between Wilmslow and Walsall via Stoke
• A tollfree second Mersey crossing at Runcorn with no downgrading of the existing bridge
• A6 High Lane/Disley/New Mills bypass - fully GSJ'd D2
• Complete elimination of rural 50's in Derbyshire, all removal of signage to be done by responsible councillors and officials working in chain gangs

Not just Derbyshire please.

Perhaps they should keep the councillors happy by allowing them to meddle with speed limits - but that any signs except 30mph and 60mph signs must be made out of solid copper, to differentiate them.

Then we wait

But then what about all the 40 limits that are perfectly decent?

A few things other people missed out:

Build proper A13 flyover at Lodge Avenue, and grade-separate nearby Renwick Road junction.
Build M12 as bypass for A12 between M25 and M11
Build Thames River Crossing between A13 and A2016

a) finish dualling the A64
b) finish the M67
c) finish the A1(M)
d) and to not be totally road-specific, rebuild the Rillington-Pickering rail line.

27) The A6144(M) will be reinstated and the reinstatement rules will make clear that it will have a speed limit of 70mph.

In general my opinion is that they should all be NSL. A 40mph dual carriageway could be safe for 50mph at 3am, or 30mph at 3pm. Drivers should learn that NSL doesn't mean "you should go 60/70mph", it means "you should go a maximum of 60mph or 70mph if safe".

More traffic police would mean that those driving too fast (and too slow) would be pulled either for words of advice, or prosecuted for careless driving.

For instance, this bit of (thankfully remarked) D1: -

http://goo.gl/maps/z0qT

Technically 70mph, but everyone goes about 40mph, which is a sensible speed.

It's sensible, but I suspect there are a lot of 30s which are safe to do 40 along when it's quiet, presumably you'd have these at NSL as well?

I think we need to be more ambitious.

If I was a Dictator I'd tunnel (properly underground, 100m deep or so) a 4-lane motorway from Weston-Super Mare to Stirling, this would be dead straight and level in 2 bores (one each way). No Speed Limits.

I would ban all emergency service vehicles from the tunnels and instead install a fleet of high performance bulldozers to push any broken, bent or twisted vehicles causing an obstruction into a conveniently placed bottomless pit (which would be constructed at regular intervals). This would encourage drivers to ensure their vehicles were properly roadworthy and that they paid attention as any collision would have no casualties, only fatalities .

I would then consider expanding the tunnel network with full grade separated junctions to cover other important places like Jamestown, Exeter, Aberystwyth, Coventry, Enniskillen, Lerwick, Georgetown, Newcastle and Georgetown.

Economics is easy - it would all be funded by the most exorbitant road toll system on surface roads south of Stirling , massive taxation on internal flights and sale of huge quantities of aggregate.

I'd reinstate the subjunctive.

In general unless it's an arterial route with no pedestrian traffic I think it's right to have a 30mph limit, but enforced by traffic police rather than cameras. That way, if it is 3am and no-one else is around, they can use their discretion and ignore, or give words of advice, for breaking the limit.

Sorry for bringing this back but what I would do is:

1) Finish the Preston Motorway Box.
2) Anyone who drives below the speed limit on motorways or busy D2/D3's to be forced to listen to cruddy Eurovision songs on repeat in a loop for 50 years.
3) Within 7 years of me becoming a dictator the most common vehicle will be a tank.
4) M65 to be downgraded to a S2 B-road around Burnley with the other carriageway used as the foundations for the northern part of a 10ft tall 6ft thick iron wall around Burnley .
5) A59 west of the Tickled Trout junction to be upgraded to A59(M)and the junction be made into a 4-level stack with a 5th level for non-motorway traffic from the A59 west of here.

My list - sticking to local gripes:

1) Whole of Birmingham MRR to be 40 limit - far too much 30 still left on former S2 sections now upgraded, plus
1a) Construction of MRR flyover at Dartmouth Circus to ease congestion
2) Reinstate 40 limit on A38 through city
3) Complete suburban dualling schemes, e.g. A435 from Alcester Lanes End to city boundary to ease congestion.
4) Western Orbital to ease pressure on M5/M6
5) Buy-out of MEL to de-toll M6Toll and ease pressure on M6
6) Reinstatement of passenger services on Camp Hill Line to ease pressure on bus services
7) Dualling of Coventry-Leamington line and reopening of Kenilworth station
8) Dualling of Evesham by-pass and other unimproved sections of A46 to ease pressure on M5/M42/M40
9) 50 limits on Heartlands/Fort Parkway (A47), and on Black Country Spine Route (A41) and Black Country Route (A463)
10) Quadrupling of Stour Valley Line from Birmingham to Wolverhampton, to allow better express services.

That's not too much to ask, is it?

With me, supposing we could free up £ 10 billion for the roads( actually not that hard if we really slashed the EU and overseas aid budget), this is what I would love to do:
1. Upgrade the Newcastle western by pass to a D3M.
2. Extend the M11 from Cambridge to the Humber Bridge, relieving the A1 and helping to develop Humberside.
3. Dual the A66 from Penrith to Scotch Corner.
4. Widen the M8 from Edinburgh to Glasgow to six lanes.
5. Local schemes dear to me: by pass the A595 through Whitehaven, build a D2 by pass of Bigrigg, dual the A66 from Bridgefoot to Cockermouth and a relief road for southern Workington.
6. Dual the A1 from Morpeth to Berwick.
7. Dual all remaining S2 sections of the A30 in Cornwall.
8. Completely upgrade the A64 from York to Scarborough with by passes and D2 throughout.
9. Dual the A27/259 from Brighton to Hastings.
10. Dual the A75 from Gretna to Stranraer.

I would extend the M1 south, via Marble Arch to meet the M23. The latter would be abolished as a road number and merged with the M1. Further south it would be extended to an extended M27 running to Ashford.

1) Reverse recent downgrades of roundabouts, remove signals and re-engineer junctions back to roundabouts if necessary.
2) Upgrade puffin crossings back to pelicans, or zebras in quieter locations. Also grade seperate pedestrian crossings in the busiest locations, making avoiding these new subways and crossing the road anyway a traffic offence
3) Remove most bus lanes, and remove 24/7 restrictions on those where there are a lot of daytime buses.
4) Create a small, £10/year tax for using a bike, also require cyclists to pass a basic test and have number plates on their bikes. Cycle lane use will be made mandantory where they exist.
5) Make all unremovable traffic lights part time - except those in London and other cities where they are required 24/7.
6) Re-trunk large parts of the network
7) Ban developers from building junctions, instead requiring the relevant highway authority to do so if and only if there is a clear and compelling near (such as a large increase in traffic)

Now the actual road building
[*] M30 Popham - Exeter
[*] M14 Catthorpe - Felixstowe
[*] M12 London - Copdock
[*] A1(M)/M10 London - Edinburgh
[*] M2 extensions to London and Dover
[*] M27 Plymouth - Brighton
[*] M31 as planned
[*] M15 Ringway 2, as planned
[*] M23 as planned (to Ringway 2)
[*] A74(M) renumbering to M6
[*] M5 extension to Plymouth
[*] A12 Ipswich - Gt. Yarmouth fully GSJ D2
[*] M33 Taunton - South Wales, via Minehead and Barry Island

26) Rename the M74 and A74(M) the M6 "Queen Elizabeth The Second Way".

27) Abolish all speed limits under 70 on the MK spine roads.

28) Dual the remaining spine roads and knock down all properties on Fen Street in Milton Keynes turning it back into a Spine Road.

29) Build the worlds Biggest Coal Power Station in Luton.

30) Rebuild Caxton Gibbet to Black cat as D3M and A1M from Baldock to Alconbury as D3M to St Neots and D4M north of St Neots. New freeflow junction at Black Cat and 3 mile long east to north spur running north of St Neots (if they did that there would be no need to rebuild the A14 to Huntington).

I think I'd stage a coup

Never come to Leigh and say that, as you wouldn't leave alive.

We've got a roundabout (nicknamed Kamikaze Island) that is due to be removed and replaced by signals, as it is the source of all congestion in the town.

I was just thinking about how much quicker my journey home has been since the Quay Street Roundabout was signalised (took about 10 minutes off a 40 minute journey).

The only reason I don't use my local subway is actually because, since the road is empty at night, there is no reason not to cross it on foot. And since no-body ever sees me crossing, you won't be able to fine me!

The one time you really need access to a bus lane is at night.