2014-12-20 15:02 GMT+01:00 Friedrich Volkmann b...@volki.at:
Is it too much of a challenge for router developers to look at one or two
other tags?
Not a big challenge, but an unnecessary one. Also, a challenge for mappers.
And won't maxspeed=number + maxspeed:type=signals (or
I like maxspeed:variable=* simply because it lets you use maxspeed=* in its
original sense. Maxspeed=signals robs you of that original tag and routers
now have to dig deep into tags to understand the real maxspeed.
Keep the simple tags, and build around them, that's what I say.
Janko.
Dana 19.
On 20.12.2014 09:42, Janko Mihelić wrote:
I like maxspeed:variable=* simply because it lets you use maxspeed=* in its
original sense. Maxspeed=signals robs you of that original tag and routers
now have to dig deep into tags to understand the real maxspeed.
Is it too much of a challenge for
Hi!
As the usage of maxspeed:variable continues to increase, I would like to
draw your attention again to its proposal:
https://wiki.openstreetmap.org/wiki/Proposed_features/Dynamic_maxspeed
In my opinion maxspeed:variable is far superior to maxspeed=signals as it
provides not only the
* what is the maximum possible(!) speed limit
The possible max speed limit is most likely the speed limit fo that type of
road in that country, unless you have better information (from what source
with what licence?), but that's not really helpful for a router
* what is the reason(!) for the
Peter Wendorff wendo...@uni-paderborn.de wrote:
Am 26.06.2012 16:55, schrieb Paul Johnson:
It seems like tagging for the lowest, highest and default limits
would be useful.
What's the purpose of a lowest speed limit?
I don't think it's useful, as we are still speaking about legal
On Thu, Jun 28, 2012 at 4:03 PM, John F. Eldredge j...@jfeldredge.com wrote:
A lowest speed limit means that, under normal circumstances, traffic is
supposed to go at least that fast, and someone going slower can be cited for
obstructing traffic. It doesn't get enforced when heavy traffic,
Am 28.06.2012 23:50, schrieb Toby Murray:
On Thu, Jun 28, 2012 at 4:03 PM, John F. Eldredge j...@jfeldredge.com wrote:
A lowest speed limit means that, under normal circumstances, traffic is
supposed to go at least that fast, and someone going slower can be cited for obstructing
traffic. It
The lowest variable speed limit I have seen on a UK motorway is 40 mph, but
that doesn't mean it can't go lower.
I do not believe that there is a defined minimum on motorways, rather it is up
to the discretion of the police, I'd they deem you are going to slowly they
will escort you off.
Phil
On Jun 28, 2012 2:04 PM, John F. Eldredge j...@jfeldredge.com wrote:
A lowest speed limit means that, under normal circumstances, traffic is
supposed to go at least that fast, and someone going slower can be cited
for obstructing traffic. It doesn't get enforced when heavy traffic, road
Hi.
That's how it's documented and defined, but I fear, if you look into
maxspeed tags of countries not using the metric system on signs, we
probably have many bugs in values without units, if you use that
assumption.
It's similar to everything else:
If there's nothing declared, you don't
Am 26.06.2012 16:55, schrieb Paul Johnson:
It seems like tagging for the lowest, highest and default limits
would be useful.
What's the purpose of a lowest speed limit?
I don't think it's useful, as we are still speaking about legal speed
limits, while often lower practical speed limits
2012/6/27 Peter Wendorff wendo...@uni-paderborn.de:
Hi.
That's how it's documented and defined, but I fear, if you look into
maxspeed tags of countries not using the metric system on signs, we probably
have many bugs in values without units, if you use that assumption.
It's similar to
On Wed, Jun 27, 2012 at 09:33:49AM +0200, Peter Wendorff wrote:
Am 26.06.2012 16:55, schrieb Paul Johnson:
It seems like tagging for the lowest, highest and default limits
would be useful.
What's the purpose of a lowest speed limit?
I'd say - Worst case travel time estimation?
Flo
--
Am 27.06.2012 09:36, schrieb Martin Vonwald:
2012/6/27 Peter Wendorff wendo...@uni-paderborn.de:
Hi.
That's how it's documented and defined, but I fear, if you look into
maxspeed tags of countries not using the metric system on signs, we probably
have many bugs in values without units, if you
Am 27.06.2012 09:37, schrieb Florian Lohoff:
On Wed, Jun 27, 2012 at 09:33:49AM +0200, Peter Wendorff wrote:
Am 26.06.2012 16:55, schrieb Paul Johnson:
It seems like tagging for the lowest, highest and default limits
would be useful.
What's the purpose of a lowest speed limit?
I'd say -
On Wed, Jun 27, 2012 at 12:33 AM, Peter Wendorff
wendo...@uni-paderborn.dewrote:
Am 26.06.2012 16:55, schrieb Paul Johnson:
It seems like tagging for the lowest, highest and default limits would
be useful.
What's the purpose of a lowest speed limit?
To be able to display a range, or
Hi Paul,
Am Mittwoch, 27. Juni 2012, 07:07:49 schrieb Paul Johnson:
What's the purpose of a lowest speed limit?
To be able to display a range, or estimate the correct value when other
data (such as speed limits that vary based on time of day) is available.
Speed limits that only depend on
2012/6/27 Paul Johnson ba...@ursamundi.org
To be able to display a range, or estimate the correct value when other
data (such as speed limits that vary based on time of day) is available.
I think that estimation of slowest possible trip is not something we
should be thinking about. In my
+1
Real time estimates are best handled by TMS, or similar.
Phil
--
Sent from my Nokia N9
On 27/06/2012 15:40 Janko Mihelić wrote:
2012/6/27 Paul Johnson ba...@ursamundi.org
To be able to display a range, or estimate the correct value when other data
(such as speed limits that vary
Hi!
Lately I was mapping features along motorways, including speed limits.
Some of them are displayed on electronic signs, but usually only
change in case of traffic jams, accidents, dangerous weather
conditions, ... and so on. Now should these really be tagged with
maxspeed=signals? All of them
On Tue, Jun 26, 2012 at 11:43 AM, Martin Vonwald imagic@gmail.com wrote:
All of them showed 100. And under
normal circumstances they will always show 100.
The tag maxspeed=signals doesn't carry any useful information in this
situation
How about the default_maxspeed tag, which is already
On 26/06/2012 11:43, Martin Vonwald wrote:
Lately I was mapping features along motorways, including speed limits.
Some of them are displayed on electronic signs, but usually only
change in case of traffic jams... All of them showed 100. And under
normal circumstances they will always show 100.
I was going to point you at the M6 around Walsall, but having looked at it I am
even more confused.
Some ways are tagged maxspeed 70mph, some are tagged as maxspeed signals, and a
section is 110kmh which is clearly very wrong. I will correct and email the
mapper.
Am not sure of purely using
2012/6/26 Philip Barnes p...@trigpoint.me.uk:
Do we need a separate tag such as limit = variable, maxspeed = 70mph. At
present there is a note about active traffic management but I assume is
ignored by routers.
Actually I think we do need a different tagging and also some
different
2012/6/26 John Sturdy jcg.stu...@gmail.com:
As far as I know, variable speed limits tend to be used in areas prone
to heavy congestion
The last two weekends I drove on the A9 and S6 in Austria. The
electronic speed signs there are used mainly to lower the speed limit
in case of bad weather.
Am 26.06.2012 14:41, schrieb Martin Vonwald:
2012/6/26 Philip Barnes p...@trigpoint.me.uk:
Do we need a separate tag such as limit = variable, maxspeed = 70mph. At
present there is a note about active traffic management but I assume is
ignored by routers.
Actually I think we do need a
2012/6/26 Peter Wendorff wendo...@uni-paderborn.de:
I would prefer to allow (not require) an additional unit information (mph,
km/h)
Sorry - my writing was misleading. Of course the unit should be allowed!
* A different tag should be used if the speed limit is somehow
managed, maybe
On 26/06/2012 12:39, David Earl wrote:
On 26/06/2012 11:43, Martin Vonwald wrote:
Lately I was mapping features along motorways, including speed limits.
Some of them are displayed on electronic signs, but usually only
change in case of traffic jams... All of them showed 100. And under
normal
On Tue, Jun 26, 2012 at 7:41 AM, Martin Vonwald imagic@gmail.com wrote:
Why do I think that maxspeed=signals is a bad idea? Because it doesn't
carry a lot of useful information. The speed limit is especially
important to routing applications. For such an application
maxspeed=signals is no
On Jun 26, 2012 5:41 AM, Martin Vonwald imagic@gmail.com wrote:
Why do I think that maxspeed=signals is a bad idea? Because it doesn't
carry a lot of useful information. The speed limit is especially
important to routing applications. For such an application
maxspeed=signals is no
On Jun 26, 2012 5:47 AM, John Sturdy jcg.stu...@gmail.com wrote:
As far as I know, variable speed limits tend to be used in areas prone
to heavy congestion, so routing applications should probably assume
it's a slow road (at least during the daytime).
In the US, the most common variable speed
On Jun 26, 2012 6:03 AM, Peter Wendorff wendo...@uni-paderborn.de wrote:
I would prefer to allow (not require) an additional unit information
(mph, km/h), simply to encourage data consumers to deal with them as they
are usually added by users.
On the other hand no data consumer can be sure
I would prefer to allow (not require) an additional unit information (mph,
km/h), simply to encourage data consumers to deal with them as they are
usually added by users.
On the other hand no data consumer can be sure about a (global) default
unit if there's no unit given.
I thought it was
On Tue, Jun 26, 2012 at 3:59 PM, Paul Johnson ba...@ursamundi.org wrote:
In the US, the most common variable speed limit scenario is a school zone.
Rules for when the lower limit applies varies. Some are certain hours of
the day and only on school days, others are year round whenever children
Hi Martin,
Am Dienstag, 26. Juni 2012, 12:43:10 schrieb Martin Vonwald:
The tag maxspeed=signals doesn't carry any useful information in this
situation. If I tag those speed limits with this tag we completely
lose the information that on this part(s) of the motorway one usually
can drive
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