JNugent wrote:
Richard J. wrote:

and downgrade the speed limits,

... in the case of ex-A40(M) to the design speed of the road, and
improving the traffic-flow efficiency at peak times too, so what's
your problem with that?

The A40(M) speed limit used to be 50 on the 2-lane stretch and 60 on
the three-lane stretch. What are they now?

The speed limit reductions I was thinking of were mainluy on the
former A102 at Bow and the A102(M) just north of that (now A12) where
a six-lane highway with hard shoulders is limited to 40mph. Oh, and th
southbound continuation heading for Kent has been reduced from a 60
limit to a 50.

Ex-A40(M) is still 6 lanes; don't know about A102(M);

Speed limit curtailed to an unrealistically low 40 (this on a road
which is a motorway in all but name and part of which used to be a
motorway).
M41 reduced from 6 to
4 in order, I think, to incorporate the junction for the Westfield
Centre (White City), but this hasn't affected traffic-flow
efficiency as the roundabouts at each end are the limiting factor.

And the hard shoulders?

What local junction needs two strips of land 27' wide and a mile long?

The total length of the junction between the starting points of the two exit
slip roads is 0.44 mile (measured on Google Earth) out of a total ex-M41
length of about 0.75 mile. The slip roads are all 2-lane. (Westfield is a
*very* big shopping centre.)


There are now buildings on part of the west side of the former M41,
where the hard shoulder used to be.

The only building is the southbound platform structure of the new Shepherd's
Bush station on the West London Line, right at the southern end of the
ex-M41. Then through the new junction you have 4 lanes of A3220 and 4 lanes
of slip roads, with no hard shoulders. The north-facing slip roads continue
right up to the point where the carriageways separate for the approach to
the Northern Roundabout, and from there it has always been 2-lane. The only
reason for building 3-lane carriageways was as part of the full Motorway
Box.

How else would you have accommodated road traffic for the Westfield Centre
without "wrecking" the road?
--
Richard J.
(to email me, swap 'uk' and 'yon' in address)

Richard J. wrote:
JNugent wrote:

There are now buildings on part of the west side of the former M41,
where the hard shoulder used to be.

The only building is the southbound platform structure of the new
Shepherd's Bush station on the West London Line, right at the
southern end of the ex-M41. Then through the new junction you have 4
lanes of A3220 and 4 lanes of slip roads, with no hard shoulders. The
north-facing slip roads continue right up to the point where the
carriageways separate for the approach to the Northern Roundabout,
and from there it has always been 2-lane. The only reason for
building 3-lane carriageways was as part of the full Motorway Box.

How else would you have accommodated road traffic for the Westfield
Centre without "wrecking" the road?

I would have built a new 2+2 road from Wood Lane to Holland Park roundabout
through the development site, and linked the access roads to that. I would
then have made the west side of the green two-way, opened the bus-only cut
through on the east side of the green to all traffic, made the connection
from the green to the roundabout bus/taxi/cycle only, probably one lane each
way. This would make the green into a nice place to sunbathe or shop.

On 20 Aug, 02:32, "John Rowland"
wrote:
How else would you have accommodated road traffic for the Westfield
Centre without "wrecking" the road?

I would have built a new 2+2 road from Wood Lane to Holland Park roundabout
through the development site, and linked the access roads to that. I would
then have made the west side of the green two-way, opened the bus-only cut
through on the east side of the green to all traffic, made the connection
from the green to the roundabout bus/taxi/cycle only, probably one lane each
way. This would make the green into a nice place to sunbathe or shop.

That would have been an excellent plan - but would doubtless have made
JNugent's head explode with rage.

--
John Band
john at johnband dot org
www.johnband.org

On Wed, 20 Aug 2008 02:32:13 +0100, "John Rowland"
wrote:

I would have built a new 2+2 road from Wood Lane to Holland Park roundabout
through the development site, and linked the access roads to that. I would
then have made the west side of the green two-way, opened the bus-only cut
through on the east side of the green to all traffic, made the connection
from the green to the roundabout bus/taxi/cycle only, probably one lane each
way. This would make the green into a nice place to sunbathe or shop.

Ah yes, a scheme to drag the Bush from its lowly status of poundshops,
fast food shops and hangout for inebriated persons to a higher plane
of niceness. Methinks it would be fought by Hamm council who never did
much for this area, and fought by the green-clad monster next door
which won't want retail competition outside its control. Lose shopping
centre space to a 2+2 road to improve the green to the south and try
to cure the eternal traffic jam? Madness!

As for accommodating road traffic for the Westfield, isn't it going to
be a Bluewater at peak times anyway? Despite the PT options, the sheer
size can only pay for itself by sucking in traffic from the wealthy
west of London. Crazy place for such a big centre really. The main
dosh as far as I can see will be from the Beeb employees next door,
and they're going to be purged further by banishment to Salford. White
City estates probably won't be the W's main savour. Peeps on tubes
usually don't carry 20 bags of goodies home.
--
Old anti-spam address cmylod at despammed dot com appears broke
So back to cmylod at bigfoot dot com

On Aug 20, 10:03 am, Colum Mylod wrote:
As for accommodating road traffic for the Westfield, isn't it going to
be a Bluewater at peak times anyway? Despite the PT options, the sheer
size can only pay for itself by sucking in traffic from the wealthy
west of London. Crazy place for such a big centre really. The main
dosh as far as I can see will be from the Beeb employees next door,
and they're going to be purged further by banishment to Salford. White
City estates probably won't be the W's main savour. Peeps on tubes
usually don't carry 20 bags of goodies home.

I thought the idea was to be a less unbearable version of Oxford
Street, from which peeps on Tubes frequently carry many, if not 20,
bags of goodies home.

You may well be right that that's a special case and that people won't
be willing to do the same thing 10 minutes further west, though.

--
John Band
john at johnband dot org
www.johnband.org