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Am 31.07.2015 um 07:41 schrieb Maarten Deen md...@xs4all.nl:
It is more than sufficient for a time calculation to use the maximum speed,
multiplied by some factor (smaller than 1), or even a fixed speed per road
class.
Sometimes it also depends on the region and the
On 2015-07-31 09:22, Martin Koppenhoefer wrote:
sent from a phone
Am 31.07.2015 um 07:41 schrieb Maarten Deen md...@xs4all.nl:
It is more than sufficient for a time calculation to use the maximum
speed, multiplied by some factor (smaller than 1), or even a fixed
speed per road class.
James Mast rickmastfa...@hotmail.com writes:
I've been normally mapping slip lanes as '_link' highways at
intersections since the beginning. However, as most fellow US mappers
know, they almost never have 'speed limits' posted for them, and that
seems to help cause problems in some routing
On 2015-07-30 14:52, Greg Troxel wrote:
If there were to be a penalty (distinct from a time/distance estimate),
it should perhaps be for getting off a major road and getting back on.
But, one could argue that this would be kludgy, and if one wanted that,
the real issue would be that the
On Thu, Jul 30, 2015 at 09:24:12PM +0200, Colin Smale wrote:
I assume you are talking about typical speeds, and not a practical maximum. A
max speed will almost never be achieved, by definition actually as the
vehicle speeds will have a certain distribution. The highest recorded speed
will
On Thu, Jul 30, 2015 at 08:52:57AM -0400, Greg Troxel wrote:
The issue of on-ramps/off-ramps tagged as *_link has been a particular
discussion focus. The notion you expressed that these don't have actual
posted limits, just sometimes yellow signs is indeed shared by most in
the discussions.
I assume you are talking about typical speeds, and not a practical maximum. A
max speed will almost never be achieved, by definition actually as the vehicle
speeds will have a certain distribution. The highest recorded speed will be the
de facto practical maximum, assuming the driver survived.
It is more than sufficient for a time calculation to use the maximum
speed, multiplied by some factor (smaller than 1), or even a fixed speed
per road class. My car navigation has this (there are three speeds I can
set) and usually the time is correct within a few minutes.
Much better is
On Thu, Jul 30, 2015 at 08:00:55PM +0200, Colin Smale wrote:
Practical maxspeed is useless as well. A straight wide road may be capable of
hosting land speed records, but traffic density is likely to be a far more
important factor.
yes, and this is what practical maxspeed is good for. Not
On Thu, Jul 30, 2015 at 08:52:57AM -0400, Greg Troxel wrote:
The issue of on-ramps/off-ramps tagged as *_link has been a particular
discussion focus. The notion you expressed that these don't have actual
posted limits, just sometimes yellow signs is indeed shared by most in
the discussions.
Practical maxspeed is useless as well. A straight wide road may be capable of
hosting land speed records, but traffic density is likely to be a far more
important factor.
On 30 July 2015 19:56:41 CEST, Richard ricoz@gmail.com wrote:
On Thu, Jul 30, 2015 at 08:52:57AM -0400, Greg Troxel
In reality there is only one set of stop lights there, correct? In other
words, if one were headed south on McKnight Road turning east on Seibert,
one would not have to stop (assuming red lights) three different times.
1) A routing engine should have some heuristics to interpret the three (in
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