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-   -   Reduce Traffic - Turn left on a RED (https://www.londonbanter.co.uk/london-transport/1804-reduce-traffic-turn-left-red.html)

Terry Harper June 3rd 04 09:20 PM

Reduce Traffic - Turn left on a RED
 
"mookie89" wrote in message
y.com...

FWIW, here in the States there was quite a controversy when the idea was
first floated for Right Turn on Red. The nay-sayers complained of the
hundreds of thousands of pedestrians that would perish. There was, in

fact,
quite a learning curve (no pun intended) and there were some tragic

crashes
at first, but all-in-all it seems to work just fine now. As for a

dedicated
right turn lane (left in the UK), while we do have some, the bulk of
intersections have none. Therefore if car #1 goes straight and car #2

wants
to turn, car #2 waits for the traffic signal to change. What would really
help here in the USA is British style roundabouts. I love driving in your
country because the roundabouts at least keep traffic somewhat flowing as
opposed to what someone else in this thread said about waiting for signals
to change when not a cross traffic or pedestrian is in sight. BTW, if we
want to turn left (in the USA) on to a one-way street that only goes to

the
left and we are also on a one-way street, we can legally turn left.


What would be worth importing is the US "Stop 4-ways" system. Far better
than the mini-roundabouts which infest our roads.

I also like the Dutch idea, where a road with 2 lanes in each direction
changes to 3 and one at traffic lights, one for right turn, one for straight
ahead and one for left turns, all synchronised to allow turns without
conflicting movements.
--
Terry Harper, Web Co-ordinator, The Omnibus Society
75th Anniversary 2004, see http://www.omnibussoc.org/75th.htm
E-mail:
URL:
http://www.terry.harper.btinternet.co.uk/



Andrew P Smith June 4th 04 05:57 PM

Reduce Traffic - Turn left on a RED
 
In article , Helen Deborah
Vecht writes

I think there's a similar one in Hemel Hempstead....


No, that's just 5 mini roundabouts in close succession similar to those
outside Hatton Cross tube station.
--
Andrew
Electronic communications can be altered and therefore the integrity of this
communication can not be guaranteed.
Views expressed in this communication are those of the author and not
associations or companies I am involved with.

Richard J. June 4th 04 09:59 PM

Reduce Traffic - Turn left on a RED
 
Andrew P Smith wrote:
In article , Helen Deborah
Vecht writes

I think there's a similar one in Hemel Hempstead....


No, that's just 5 mini roundabouts in close succession similar to
those outside Hatton Cross tube station.


IIRC there are 6 mini roundabouts, placed around a central island. This
is an exactly similar configuration to the Swindon one, except that
Hemel has 6 roads entering instead of 5, and the central island is
bigger.
--
Richard J.
(to e-mail me, swap uk and yon in address)


Martin Underwood June 4th 04 10:00 PM

Reduce Traffic - Turn left on a RED
 

"Richard J." wrote in message
...
Andrew P Smith wrote:
In article , Helen Deborah
Vecht writes

I think there's a similar one in Hemel Hempstead....


No, that's just 5 mini roundabouts in close succession similar to
those outside Hatton Cross tube station.


IIRC there are 6 mini roundabouts, placed around a central island. This
is an exactly similar configuration to the Swindon one, except that
Hemel has 6 roads entering instead of 5, and the central island is
bigger.


I thought the roundabouts at Swindon were placed randomly rather than
regularly around a central roundabout. Certianly they appear fairly random
when you drive around them.



Richard J. June 4th 04 10:31 PM

Reduce Traffic - Turn left on a RED
 
Martin Underwood wrote:
"Richard J." wrote in message
...
Andrew P Smith wrote:
In article , Helen
Deborah Vecht writes

I think there's a similar one in Hemel Hempstead....

No, that's just 5 mini roundabouts in close succession similar to
those outside Hatton Cross tube station.


IIRC there are 6 mini roundabouts, placed around a central island.
This is an exactly similar configuration to the Swindon one,
except that Hemel has 6 roads entering instead of 5, and the
central island is bigger.


I thought the roundabouts at Swindon were placed randomly rather
than regularly around a central roundabout. Certianly they appear
fairly random when you drive around them.


If you look at the photo on the page that I referred to originally in
this thread*, you'll see that there is a mini-roundabout at the point
where each of the 5 roads enters the Magic Roundabout, forming a
more-or-less regular pentagon.

* http://www.swindonweb.com/life/lifemagi0.htm

--
Richard J.
(to e-mail me, swap uk and yon in address)


Martin Underwood June 5th 04 08:06 AM

Reduce Traffic - Turn left on a RED
 
"Richard J." wrote in message
...
Martin Underwood wrote:
"Richard J." wrote in message
...
Andrew P Smith wrote:
In article , Helen
Deborah Vecht writes

I think there's a similar one in Hemel Hempstead....

No, that's just 5 mini roundabouts in close succession similar to
those outside Hatton Cross tube station.

IIRC there are 6 mini roundabouts, placed around a central island.
This is an exactly similar configuration to the Swindon one,
except that Hemel has 6 roads entering instead of 5, and the
central island is bigger.


I thought the roundabouts at Swindon were placed randomly rather
than regularly around a central roundabout. Certianly they appear
fairly random when you drive around them.


If you look at the photo on the page that I referred to originally in
this thread*, you'll see that there is a mini-roundabout at the point
where each of the 5 roads enters the Magic Roundabout, forming a
more-or-less regular pentagon.

* http://www.swindonweb.com/life/lifemagi0.htm


You're absolutely right! I've looked at the aerial photo and I can't work
out why this one appears so confusing and random when you're driving round
it whereas the one in Hemel seems more organised. How many exits does the
Hemel one have: is it six?

I think I still prefer a nice simple arrangement with one big roundabout,
they you only have to gave way ONCE, as you're entering the roundabout,
rather than having to be prepared to stop at every roundabout on your route.



Bob Wood June 6th 04 07:22 AM

Reduce Traffic - Turn left on a RED
 
In s.com,
Martin Underwood typed:

I think I still prefer a nice simple arrangement with one big
roundabout, they you only have to gave way ONCE, as you're entering
the roundabout, rather than having to be prepared to stop at every
roundabout on your route.


I lived in Hemel before the mini-roundabouts were put there. The problem
was that the big roundabout was so big that traffic already on it was able
to travel at such a speed that it was impossible for other traffic to join;
hence huge queues built up.

After the changes were made, speed through the junction lessened
considerably but so did the length of the queues. Overall the time spent
getting through the whole queue/junction was much shorter. I suppose it can
be likened to the variable speed limits on the M25 - reduce the
traffic speed and more traffic gets through the area in a given time.


Bob





Neil Williams June 6th 04 07:40 AM

Reduce Traffic - Turn left on a RED
 
On Sun, 6 Jun 2004 08:22:23 +0100, "Bob Wood"
wrote:

After the changes were made, speed through the junction lessened
considerably but so did the length of the queues. Overall the time spent
getting through the whole queue/junction was much shorter. I suppose it can
be likened to the variable speed limits on the M25 - reduce the
traffic speed and more traffic gets through the area in a given time.


I wonder how the usual option - traffic lights on the roundabout -
would perform in comparison?

I can think of a couple of roundabouts in Milton Keynes (other than
the one that already has lights) which could do with some slowing of
the traffic, as it sometimes approaches and negotiates the roundabout
at dangerous speeds (50mph is not impossible - the roundabout is so
wide that if there's very little traffic it's possible to take an
almost straight path across it so there is little need to slow down).

If anyone's interested, the main one concerned is the V11-H8
roundabout by the Kingston Centre. I've almost come to grief a few
times there - it's quite possible for traffic to approach up the H8
near the speed limit (70mph) and not be visible to someone waiting on
the V11 north side (due to the layout) until it is almost on the
roundabout. At that sort of speed, this is far too late and often
results in emergency braking being necessary (my car hasn't got enough
go to safely accelerate out of the way).

Neil

--
Neil Williams in Milton Keynes, UK
To e-mail use neil at the above domain

Andrew P Smith June 6th 04 10:35 PM

Reduce Traffic - Turn left on a RED
 
In article , Richard J.
writes
Andrew P Smith wrote:
In article , Helen Deborah
Vecht writes

I think there's a similar one in Hemel Hempstead....


No, that's just 5 mini roundabouts in close succession similar to
those outside Hatton Cross tube station.


IIRC there are 6 mini roundabouts, placed around a central island. This
is an exactly similar configuration to the Swindon one, except that
Hemel has 6 roads entering instead of 5, and the central island is
bigger.


Yes, Hemel has 6, Hatton Cross has 5, but neither are anything like the
Magic Roundabout in Swindon IMO.
--
Andrew
Electronic communications can be altered and therefore the integrity of this
communication can not be guaranteed.
Views expressed in this communication are those of the author and not
associations or companies I am involved with.

K June 7th 04 11:28 AM

Reduce Traffic - Turn left on a RED
 
On Fri, 4 Jun 2004 18:57:03 +0100, Andrew P Smith
wrote:

In article , Helen Deborah
Vecht writes

I think there's a similar one in Hemel Hempstead....


No, that's just 5 mini roundabouts in close succession similar to those
outside Hatton Cross tube station.


No its the same format - there is even the special road sign as you
approach it. I think the Hemel one came first, as well.

K June 7th 04 11:31 AM

Reduce Traffic - Turn left on a RED
 
On Sun, 6 Jun 2004 23:35:25 +0100, Andrew P Smith
wrote:



Yes, Hemel has 6, Hatton Cross has 5, but neither are anything like the
Magic Roundabout in Swindon IMO.


But the Hemel one, at least, has the special sign as you approach it.
I've not used the others but the one in Hemel certainly *is* like the
Swindon one is described, only bigger and more complicated. So maybe
its the Swindon one that not a real "magic roundabout" :-)


CJG Now Thankfully Living In The North June 7th 04 05:53 PM

Reduce Traffic - Turn left on a RED
 
"Rajesh Kakad \(BT\)" wrote in message ...
Would it not be easier to have the same rule as in the USA, where they can
turn right on a red signal?

So we should be able to turn LEFT at a RED light.

Of course the pedestrians and other cars on the green, have priority.

This would save time, reduce pollution (whilst waiting) and get traffic
moving, instead of sitting idle.

What does London say ?


In New York it does NOT work well. The number of times I and other
people were nearly run over crossing the road by cars turning on a red
light was great. Im sure if in London it was introduced it would be
another nail in the coffin for the most effective form of public
transport, walking.

CJG Now Thankfully Living In The North June 7th 04 05:54 PM

Reduce Traffic - Turn left on a RED
 
gs wrote in message ...
On Fri, 28 May 2004 13:45:43 +0000 (UTC), Rajesh Kakad (BT)
wrote:

Would it not be easier to have the same rule as in the USA, where they
can
turn right on a red signal?

So we should be able to turn LEFT at a RED light.

Of course the pedestrians and other cars on the green, have priority.

This would save time, reduce pollution (whilst waiting) and get traffic
moving, instead of sitting idle.

What does London say ?


Whilst we at it can we have flashing Amber traffic lights meaning give way
on traffic lights that are not as important during late evening
and early morning?

Like they do in Italy

How many times have you sat at a red light and nothing has passed through
before the light has gone green again?

also switch off pelican crossings after say 00.30 as people
have a habit of pressing the button as the pass them not intending to cross

anymore ideas?


All these ideas are in favour of the motorist. What about the
pedestrian? Not everyone in life will drive but everyone will walk.

CJG Now Thankfully Living In The North June 7th 04 05:58 PM

Reduce Traffic - Turn left on a RED
 

If enough drivers just start turning left through red lights anyway the
police aren't going to take any notice and it will become normal. It'll be
just like law the forbidding people to use their mobile phones whilst
driving which has become a complete JOKE. Another example is cyclists
riding being 'allowed' to ride through red lights.

Freddy


Everyone speeds depsite its illegal and they get fined. This is not
the soloution to the problem as the autorties will simply put a camera
on every single traffic light and send you a £50 snap everytime people
go through one.
And ask for mobile phone users in cars I think your find most police
forces are having a trial period for the new law before cracking down.
I think your find people are being fined for using mobile phones while
driving but at the moment the police are letting the new law establish
itself before getting tough. Also like all driving laws some people
get away with it. Some don't.

Richard M Willis June 8th 04 06:48 PM

Reduce Traffic - Turn left on a RED
 
"Rajesh Kakad \(BT\)" wrote in message news:c97fq7

So we should be able to turn LEFT at a RED light.


In general, I agree, but we do have a sort-of system where this is
allowed: green filter arrows.

This isn't the same can-turn-left-on-red-by-default but it's close
and it allows more flexibility: you can disable it if the traffic/
junction makes it unsafe to do so, and/or can change the timing
at certain times.

Do the USAns have filter arrows, or is it a Europe-specific thing ?

Aside: does anyone know why some traffic signals here show a
green filter arrow *AND* a solid green light simultaneoulsy,
given that the latter allows a superset of the filtered traffic
to "go". ?

Richard [in PO7]

Richard M Willis June 8th 04 07:04 PM

Reduce Traffic - Turn left on a RED
 
gs wrote in message ...

Whilst we at it can we have flashing Amber traffic lights meaning give way
on traffic lights that are not as important during late evening
and early morning?


anymore ideas?



Like the idea. Traffic lights are too "hard" in this country: they
have either a STOP or a GO aspect, with nothing in between. There are
many situations in which a STOP is just being overcautious for the sake
of it. All this STOP/GOing (rather than a generally lower speed overall)
increases pollution and vehicle-wear.

We could have a system where a flashing RED preceeds a full
RED at the next junction, warning people to slow down because
they're going to have to stop soon. This would have to be arranged
so that if the flasher unit failed, it would default to solid red.

We could have variable speed limits: "slow to 15mph because the
signal ahead of you is RED" (and if you don't slow, a carstop comes
out of the road to apply the brakes)

also switch off pelican crossings after say 00.30 as people
have a habit of pressing the button as the pass them not intending to cross


We could have "cancel" buttons on pedestrian crossings in case
the crosser manages to get across before the lights turn in their
favor.

I'm somewhat surprised by this statement of yours though: it's been a
long time since I saw any vehicle stop at a RED pedestrian crossing
where there were no pedestrians.

In fact, I've noticed a general trend over the past twenty years or
so to treat some traffic signals as "less serious" than other ones,
(except in the paragraph below):

We could also have blue lights to augment the R/G/A ones, meaning
"emergency service using this lane" in order to get the idiots to
move out of the way when an Ecnalubma is trying to get past a bunch
of people who won't cross a red light to let it past despite the
fact that all the conflicting traffic has stopped specifically to
let the Ecnalubma through.


Richard [in PO7]

Richard M Willis June 8th 04 07:15 PM

Reduce Traffic - Turn left on a RED
 
Annabel Smyth wrote in message

Wouldn't it, just! I would die of frustration if I had to drive in the
USA, where every single intersection, no matter how minor, has its
traffic lights..... (on ordinary streets, not motorways, of course - but
Brooklyn or New York.... yikes!).


Do they not have roundabouts in the USA, then ? I admit I've
never seen one but I wasn't looking anyway.

Roundabouts in the UK don't work as well as they ought: where
I live (in PE12) there is a huge A-road which carries about
3600 vehicles/hour, which juncs with three minor roads (about 10
vehicles/hour). The traffic from one axis of the A-road to the
other is continuous, so the traffic from the minor roads never
gets a look-in: you just have to hope to find a slow-coach on the
A-road and belt across like a mad persun. Not ideal, but otherwise
there's no way out (literally: there's no other exit from the villages).

Many roundabouts now have traffic signals, which rather defeats the
object. Some roundabouts are bidirectional and have two levels
of feeder roundabouts, and about three sets of traffic sigs in 100m.
I can't see the Americans putting up with that !

Then, of course, there are French roundabouts, where joining traffic
seems to have priority.

Richard [in PO7]

Mark Brader June 8th 04 07:34 PM

Reduce Traffic - Turn left on a RED
 
Rajesh Kakad:
So we should be able to turn LEFT at a RED light.


Richard Willis:
In general, I agree, but we do have a sort-of system where this is
allowed: green filter arrows.

... Do the USAns have filter arrows, or is it a Europe-specific thing ?


In North America, arrows are mostly used for protected left [= UK right
:-)] turns -- that is, the left-turning traffic has the right of way,
and all conflicting traffic has a red light. Perhaps the most common
way this is used is for straight-ahead traffic to have a red light in
all directions, while left turns in both directions from one of the two
streets have a green left arrow; in some jurisdictions a yellow arrow is
used to warn of the end of this phase; it is typically, but not always,
followed either by the regular green or by a green light that does not
apply to left-turning traffic. It works best when there is room for a
a separate lane to be designated for left-turning traffic approaching
the intersection.

I haven't driven enough in British cities to know whether the mirror-
image of this is a common pattern there.

Aside: does anyone know why some traffic signals here show a
green filter arrow *AND* a solid green light simultaneoulsy,
given that the latter allows a superset of the filtered traffic
to "go". ?


In North America, the combination of a green left arrow and an ordinary
green means that all moves are permitted, but the left turn is protected.
In Ontario and several other Canadian provinces, a flashing green is used
instead of this combination, with effectively the same meaning; but this
aspect is now being phased out, at least in Ontario. (Other meanings of
flashing green exist in other places, notably the province of British
Columbia.)

This response may, of course, be completely irrelevant to Richard's
question. If the meaning of the signal combination really is exactly
the same as the regular signal, maybe it is used just in case there are
people who think it might not be, and would not turn when the arrow was
dark.
--
Mark Brader, Toronto "C and C++ are two different languages.
That's UK policy..." -- Clive Feather

My text in this article is in the public domain.

Richard M Willis June 8th 04 07:36 PM

Reduce Traffic - Turn left on a RED
 
"mookie89" wrote in message news:IPkvc.5247

Also, our emergency vehicles have what's known as an OptiCon System on
board. Basically it is a very specific white high intensity strobe lamp
aimed slightly upward. At many USA intersections a little periscope
appearing apparatus is mounted just above the traffic light. That's the


Don't you get boy-racers, and other miscreants, attempting to
synthesize the correct light-frequency and thus give themselves priority
at junctions ?

We'd get that sort of thing here. My last job involved telemetry
via UHF radio. Other European countries apparently used it to
give emerg vehicles priority but it was apparently rejected for the
UK, because nefarious persuns would be able to defeat it, even when
we proposed a 200-years-to-break challenge-acknowledge protocol (it
was two-way) !

Richard M Willis June 8th 04 07:54 PM

Reduce Traffic - Turn left on a RED
 
Michael Hoffman wrote in message

Solid green means that non-emergency vehicles may not legally cross the
road you are on (although they can turn right/left on red).


Are you sure about that ?

In Brentford, where the A4 joined the Ealing Road, the traffic
signals were arranged so that two conflicting flows would both
get a green simultaneously. This was some time ago and it
was the first I'd ever seen. I don't know how common conflicting
greens are.

A green doesn't mean that you *CAN* go; it just means "go if
it's clear" (i.e you should behave (when green) as if there
were no traffic sig there at all, and only proceed if you could see there
was no oncoming traffic)

Richard [in PO7]

Robin May June 8th 04 09:31 PM

Reduce Traffic - Turn left on a RED
 
(Richard M Willis) wrote the
following in: om

Aside: does anyone know why some traffic signals here show a
green filter arrow *AND* a solid green light simultaneoulsy,
given that the latter allows a superset of the filtered traffic
to "go". ?


I can think of one traffic light where a green light means you can go
forward and turn right if no traffic is coming from the opposite
direction, but a green light *and* green arrow mean that there is a red
light for traffic coming the opposite direction so you can turn right
without needing to worry about oncoming traffic.

--
message by Robin May. Inimitable, but would you want to anyway?
"GIVE IN! IT'S TIME TO GO!" - The NHS offers a high standard of care.

http://robinmay.fotopic.net
Spelling lesson: then and than are different words.

Terry Harper June 8th 04 09:53 PM

Reduce Traffic - Turn left on a RED
 
"Richard M Willis" wrote in message
om...

Do the USAns have filter arrows, or is it a Europe-specific thing ?


Not usually, but they often have arrows above the lanes which are supposed
to go that way.

Aside: does anyone know why some traffic signals here show a
green filter arrow *AND* a solid green light simultaneoulsy,
given that the latter allows a superset of the filtered traffic
to "go". ?


The green arrow shows that it is safe to turn as the oncoming traffic has
been stopped by a red light.
--
Terry Harper, Web Co-ordinator, The Omnibus Society
75th Anniversary 2004, see http://www.omnibussoc.org/75th.htm
E-mail:
URL:
http://www.terry.harper.btinternet.co.uk/



Richard J. June 9th 04 12:17 AM

Reduce Traffic - Turn left on a RED
 
Richard M Willis wrote:
Michael Hoffman wrote in message

Solid green means that non-emergency vehicles may not legally
cross the road you are on (although they can turn right/left on
red).


Are you sure about that ?


He was talking about US practice.

In Brentford, where the A4 joined the Ealing Road, the traffic
signals were arranged so that two conflicting flows would both
get a green simultaneously. This was some time ago and it
was the first I'd ever seen. I don't know how common conflicting
greens are.


That's no different in principle from any other cross-roads where
right-turning traffic can be in conflict with other traffic which also
has a green light. It's just that the Brentford example looks different
because the layout is that of a small roundabout rather than an open
cross-roads.

--
Richard J.
(to e-mail me, swap uk and yon in address)


Richard M Willis June 9th 04 09:07 AM

Reduce Traffic - Turn left on a RED
 
"Richard J." wrote in message news:MGsxc.1702
He was talking about US practice.


Ok. I thought I was going mad.

Richard [in PO7]

Richard M Willis June 9th 04 09:21 AM

Reduce Traffic - Turn left on a RED
 
Robin May wrote in message

[about my "superfluous green arrow" question]

I can think of one traffic light where a green light means you can go
forward and turn right if no traffic is coming from the opposite
direction, but a green light *and* green arrow mean that there is a red
light for traffic coming the opposite direction so you can turn right
without needing to worry about oncoming traffic.


Yes, I know that's the case in practice: a green arrow meaning that
the opposing flow is on RED.

However, my point is that there is no legal distinction between
"solid" and "solid+arrow": the driver facing those aspects should
behave the same in both cases (i.e. assume nothing about conflicting
flows and know only that he is not compelled to stop by the signal
alone).

The presence of this superfluous combination of signals causes far too
many
people to think that they must stop UNLESS they have a filter, i.e.
that
the solid green applies only to movements that don't have a filter
even
if that filter is currently dark.

Who ever thought traffic lights can be so interesting and varied !
We've had
examples from various US States, various Canadian provinces, the two
Germanies,
Italy, France, Holland and several of those seem to conflict.

Perhaps we should allow overtaking on the left as well. The USAns seem
to manage it.

Richard [in PO7]

Richard J. June 9th 04 10:27 AM

Reduce Traffic - Turn left on a RED
 
Richard M Willis wrote:
Robin May wrote in message

[about my "superfluous green arrow" question]

I can think of one traffic light where a green light means you can
go forward and turn right if no traffic is coming from the opposite
direction, but a green light *and* green arrow mean that there is
a red light for traffic coming the opposite direction so you can
turn right without needing to worry about oncoming traffic.


Yes, I know that's the case in practice: a green arrow meaning that
the opposing flow is on RED.

However, my point is that there is no legal distinction between
"solid" and "solid+arrow": the driver facing those aspects should
behave the same in both cases (i.e. assume nothing about conflicting
flows and know only that he is not compelled to stop by the signal
alone).


There's a general need for caution at junctions in case other drivers
behave unpredictably, but nevertheless it is reasonable to assume that
when the green arrow is shown it is safe to turn right provided that any
oncoming vehicle would be able to stop in time to avoid colliding with
you (i.e. not storming towards you at 50 mph with no sign that it will
stop).

I was amazed to find that there is nothing in the Highway Code about the
green solid+arrow indication.

The presence of this superfluous combination of signals causes far
too many people to think that they must stop UNLESS they have a

filter,
i.e. that the solid green applies only to movements that don't have a
filter even if that filter is currently dark.


Can't say I have noticed that, but then London is a different driving
experience to rural Hampshire.

--
Richard J.
(to e-mail me, swap uk and yon in address)


Clive June 9th 04 10:57 AM

Reduce Traffic - Turn left on a RED
 
In message , Richard J.
writes
Can't say I have noticed that, but then London is a different driving
experience to rural Hampshire.

London is a different driving experience to anywhere.
--
Clive

Annabel Smyth June 9th 04 12:05 PM

Reduce Traffic - Turn left on a RED
 
On Tue, 8 Jun 2004 at 12:15:04, Richard M Willis
wrote:

Then, of course, there are French roundabouts, where joining traffic
seems to have priority.

Nonsense, all the signs, as you approach the roundabouts, firmly tell
you that you don't have priority! "Vous n'avez pas la priorité", they
exclaim, very loudly....

The thing about French roundabouts is that they never put the signposts
until you have just roared past the exit you needed, so you always end
up having to go round twice!

As for traffic lights on roundabouts here, they are so that traffic on
minor roads does get a chance, at peak periods, to get through. And
often, if lots of traffic turns left, they have slip-roads round to the
left so that you don't have to negotiate the roundabout.
--
Annabel Smyth
http://www.amsmyth.demon.co.uk/index.html
Website updated 6 June 2004

Peter Beale June 9th 04 12:06 PM

Reduce Traffic - Turn left on a RED
 
In article , (Terry Harper) wrote:

Do the USAns have filter arrows, or is it a Europe-specific thing ?


Not usually, but they often have arrows above the lanes which are
supposed to go that way.


On a recent trip it struck me that in the USA there is far more actual
reading than here - although they do use arrows and other symbols,
there is much of "LEFT TURNS MUST TURN LEFT", "WRONG WAY",
"RIGHT HAND LANE ENDS IN 100 FEET" and the like. Also that they
tend to use "feet" rather than "yards" for horizontal distances (we
have "feet" for vertical, though).

--
Peter Beale

Annabel Smyth June 9th 04 12:07 PM

Reduce Traffic - Turn left on a RED
 
On Tue, 8 Jun 2004 at 21:31:43, Robin May
wrote:

I can think of one traffic light where a green light means you can go
forward and turn right if no traffic is coming from the opposite
direction, but a green light *and* green arrow mean that there is a red
light for traffic coming the opposite direction so you can turn right
without needing to worry about oncoming traffic.

Indeed, I think there's one on Clapham Common North Side, isn't there?
--
Annabel Smyth
http://www.amsmyth.demon.co.uk/index.html
Website updated 6 June 2004

Mark Brader June 9th 04 12:35 PM

Reduce Traffic - Turn left on a RED
 
Peter Beale writes:
On a recent trip it struck me that in the USA there is far more actual
reading than here...


Quite true. This comes from being a country with one dominant language
and not having signs harmonized with other countries with other languages.

Canadian signage is mostly like the US, but with greater use of symbols.

- although they do use arrows and other symbols,
there is much of "LEFT TURNS MUST TURN LEFT",


Would you believe "LEFT LANE MUST TURN LEFT"?

"WRONG WAY", "RIGHT HAND LANE ENDS IN 100 FEET" and the like. Also
that they tend to use "feet" rather than "yards" for horizontal
distances ...


Well, sure. Yards are for football. In real life people use feet
(unless they're Canadian and use metric).

Ob London Transport: for the first-time North American visitor to London,
the most amusing commonly seen sign is probably "WAY OUT".
--
Mark Brader "It is considered a sign of great {winnitude}
Toronto when your Obs are more interesting than other
people's whole postings." --Eric Raymond

My text in this article is in the public domain.

gs June 9th 04 01:05 PM

Reduce Traffic - Turn left on a RED
 
On Wed, 09 Jun 2004 12:35:49 -0000, Mark Brader wrote:

Ob London Transport: for the first-time North American visitor to London,
the most amusing commonly seen sign is probably "WAY OUT".


Friend sent me a pic of a sign on an American beach that read

"Dont be a tosser - take your litter with you"

Totally innocent if you are a Yank, priceless if you are British

--
Using M2, Opera's revolutionary e-mail client: http://www.opera.com/m2/

Peter Beale June 9th 04 02:13 PM

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In article , (Mark Brader) wrote:

Ob London Transport: for the first-time North American visitor to
London,
the most amusing commonly seen sign is probably "WAY OUT".


I saw a sign while in the States (not a highway one) which read
"NO TRESPASSING WITHOUT PERMISSION". I am not sure where
one obtains permits to trespass.

--
Peter Beale

Richard J. June 9th 04 03:09 PM

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Peter Beale wrote:
In article , (Mark
Brader) wrote:

Ob London Transport: for the first-time North American visitor to
London,
the most amusing commonly seen sign is probably "WAY OUT".


I saw a sign while in the States (not a highway one) which read
"NO TRESPASSING WITHOUT PERMISSION". I am not sure where
one obtains permits to trespass.


You can't. Trespass implies lack of permission.

--
Richard J.
(to e-mail me, swap uk and yon in address)

Peter Beale June 9th 04 03:46 PM

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In article , (Richard J.) wrote:

I saw a sign while in the States (not a highway one) which read
"NO TRESPASSING WITHOUT PERMISSION". I am not sure where
one obtains permits to trespass.


You can't. Trespass implies lack of permission.


Yes, I did realize that - my comment was an attempt at humour.

--
Peter Beale

Robin May June 9th 04 11:24 PM

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(Peter Beale) wrote the following in:
o.uk

In article ,
(Terry Harper) wrote:

Do the USAns have filter arrows, or is it a Europe-specific
thing ?


Not usually, but they often have arrows above the lanes which are
supposed to go that way.


On a recent trip it struck me that in the USA there is far more
actual reading than here - although they do use arrows and other
symbols, there is much of "LEFT TURNS MUST TURN LEFT", "WRONG
WAY", "RIGHT HAND LANE ENDS IN 100 FEET" and the like. Also that
they tend to use "feet" rather than "yards" for horizontal
distances (we have "feet" for vertical, though).


Even the speed limit signs say "SPEED LIMIT 30" or whatever, instead of
just a 30 in a red circle.

--
message by Robin May. Inimitable, but would you want to anyway?
"GIVE IN! IT'S TIME TO GO!" - The NHS offers a high standard of care.

http://robinmay.fotopic.net
Spelling lesson: then and than are different words.

Robin May June 9th 04 11:25 PM

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gs wrote the following in:


On Wed, 09 Jun 2004 12:35:49 -0000, Mark Brader
wrote:

Ob London Transport: for the first-time North American visitor to
London, the most amusing commonly seen sign is probably "WAY
OUT".


Friend sent me a pic of a sign on an American beach that read

"Dont be a tosser - take your litter with you"

Totally innocent if you are a Yank, priceless if you are British


I must see that picture!

--
message by Robin May. Inimitable, but would you want to anyway?
"GIVE IN! IT'S TIME TO GO!" - The NHS offers a high standard of care.

http://robinmay.fotopic.net
Spelling lesson: then and than are different words.

Iain June 10th 04 08:45 PM

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(Richard M Willis) wrote in
m:

The presence of this superfluous combination of signals causes far
too many
people to think that they must stop UNLESS they have a filter, i.e.
that
the solid green applies only to movements that don't have a filter
even
if that filter is currently dark.


As I understand it, you DO have to stop if the filter isn't showing in
one situation: if the filter light is to the immediate left or right of
the main light, rather than underneath it.

I was led to believe that the law regarding filter arrows is thus:

* If the filter arrow is below the main green light, then if the main
light is illuminated but the filter isn't, you may proceed across the
stop line and wait to turn when it is safe to do so. Once the filter
arrow illuminates you can assume it IS safe to do so as the oncoming
traffic will now be on a red.

* If the filter arrow is beside the main green light, then if the main
light is illuminated but the filter isn't, you must not cross the stop
line, even if it is safe to turn. You must wait for the filter to
illuminate before you can even begin to make the turn.

Interestingly enough I can't find anything in the Highway Code to back
up this belief, despite the fact that a few years back a friend failed
his car test and the examiner told him that one of the faults was to
edge forward at a beside-the-main-light filter.

--
Iain | PGP mail preferred: pubkey @
www.deepsea.f9.co.uk/misc/iain.asc
($=,$,)=split m$"13/$,qq;13"13/tl\.rnh r HITtahkPctacriAneeeusaoJ;;
for(@==sort@$=split m,,,$,){$..=$$[$=];$$=$=[$=];$@=1;$@++while$=[--$=
]eq$$&&$==$?;$==$?;for(@$){$@--if$$ eq$_;;last if!$@;$=++}}print$..$/

Richard J. June 10th 04 09:54 PM

Reduce Traffic - Turn left on a RED
 
Iain wrote:
(Richard M Willis) wrote in
m:

The presence of this superfluous combination of signals causes far
too many people to think that they must stop UNLESS they have a
filter, i.e. that the solid green applies only to movements that
don't have a filter even if that filter is currently dark.


As I understand it, you DO have to stop if the filter isn't showing
in one situation: if the filter light is to the immediate left or
right of the main light, rather than underneath it.


There is no such rule (see below).

I was led to believe that the law regarding filter arrows is thus:

* If the filter arrow is below the main green light, then if the
main light is illuminated but the filter isn't, you may proceed
across the stop line and wait to turn when it is safe to do so.
Once the filter arrow illuminates you can assume it IS safe to do
so as the oncoming traffic will now be on a red.


Correct.

* If the filter arrow is beside the main green light, then if the
main light is illuminated but the filter isn't, you must not cross
the stop line, even if it is safe to turn. You must wait for the
filter to illuminate before you can even begin to make the turn.


If the traffic light looks like this:

Red
Amber
Green Green-arrow

then you are free to move if the solid green is lit. It would be absurd
to expect drivers to notice the position of a light which is not lit,
especially at night.

Interestingly enough I can't find anything in the Highway Code to
back up this belief, despite the fact that a few years back a
friend failed his car test and the examiner told him that one of
the faults was to edge forward at a beside-the-main-light filter.


That was probably a junction where there is a separate complete traffic
signal controlling turning traffic. In other words, you have something
like this:

Red Red
Amber Amber
Green Green-arrow

In that case, the two clusters control different lanes. Perhaps your
friend was waiting in the right-hand lane, and moved forward when the
left lane's green was lit, thus passing a red light for his lane. Do
you know which junction it was?

--
Richard J.
(to e-mail me, swap uk and yon in address)


Mark Brader June 10th 04 10:52 PM

Reduce Traffic - Turn left on a RED
 
Richard J.:
That was probably a junction where there is a separate complete traffic
signal controlling turning traffic. In other words, you have something
like this:

Red Red
Amber Amber
Green Green-arrow


Just by the way, the analogous layout in *some* jurisdictions in
North America would use arrows for all three lights on the left-turn
signal.
--
Mark Brader, Toronto | There is no step function between "safe" and "unsafe".
| -- Jeff Janes


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