Hi all
After considering the various opinions last Friday (see Totally OT - Route to London last Friday) I took M1 route in both directions. Journey time was 4 hours near enough both ways (excluding stops), although daughter's rental flat was close to the London end of M1 so not too much city driving thankfully. As noted by others, the semi-contra-flow section close to London was a bit of a pain - as much from the reduced width lanes (as far more concentration needed) as the 50mph restriction.
Things that were different in the big smoke:
The lane widths seem significantly narrower than Hull. Watching a Porsche slightly ahead on the A406 showed only about a foot clearance to each lane marker (OK so this car is a little wider than your standard saloon).
One thing very noticable was the lack of alignment of lane markings either side of a junction. So you drive through traffic lights taking the intuitive line to find you're rubbing door handles with the car in the outer lane! The lane markings seemed to be misaligned by upto 2 feet across some junctions.
Luckily the parking outside daughter's flat was uncontrolled Sat and Sun. It was interesting (and a little concerning at times) to see the size of the cars that managed to get successfully parked in the slots either side of ours. Distance between parked cars appeared to reduce as the day wore on.
On the return journey "up north" there were numerous signs indicating delays between junctions 16 and 18 on the M1. These were also reported northbound on a highways agency display at junction 15a services at around 5pm. As it turned out, all the trouble was on the south bound carriageway, which was at a complete standstill. Occupants had left cars and were sat on the central reservation chatting!
So all-in-all the journey could have been far worse. The new (second hand) Ford Focus 1.8 diesel returned about 52mpg cruising between 70 & 80 where possible (probably 20mpg better than the Mazda it replaced).
Just thought I'd share
Phil