Re: [talk-au] Editing speed limit in Australia

[Ross Scanlon]

Welcome to oz roads.

I had a look on street view and can not see any 60 signs along Warwick 
Road they are all 70.


Cheers

Ross



On 09/03/19 10:20, Graeme Fitzpatrick wrote:



On Sat, 9 Mar 2019 at 08:48, Ross Scanlon > wrote:


What you've said is correct for off ramps but would be incorrect
for on ramps.

The on ramp speed limit may be determined from the adjoining
road(s), as the last speed limit sign is the applicable limit
until you pass another sign.

So in the example given if the 60 sign was not on the link the
applicable limit would be what it was for Warwick Road, which from
memory is 70 near that underpass, and this would be the limit up
to the 60 sign.

So for this link it should be 70 - 60 - 100 as you go past the 60
and 100 signs.

Or, stupidly enough, if for some reason you've come down off the 
Centenary Highway via
https://www.openstreetmap.org/way/144077977#map=17/-27.66335/152.73924, 
through the traffic lights, then taken the on ramp we're talking about 
to go back up onto the Highway, your speed would be 60 - 60 - 100 as 
there's a 60 sign on that off-ramp. So you'd, quite legally, have 2 
different speed limits on that stretch of road!


Thanks

Graeme


___
Talk-au mailing list
Talk-au@openstreetmap.org
https://lists.openstreetmap.org/listinfo/talk-au

Re: [talk-au] Editing speed limit in Australia

[Graeme Fitzpatrick]

On Sat, 9 Mar 2019 at 08:48, Ross Scanlon  wrote:

> What you've said is correct for off ramps but would be incorrect for on
> ramps.
>
> The on ramp speed limit may be determined from the adjoining road(s), as
> the last speed limit sign is the applicable limit until you pass another
> sign.
>
> So in the example given if the 60 sign was not on the link the applicable
> limit would be what it was for Warwick Road, which from memory is 70 near
> that underpass, and this would be the limit up to the 60 sign.
>
> So for this link it should be 70 - 60 - 100 as you go past the 60 and 100
> signs.
>
Or, stupidly enough, if for some reason you've come down off the Centenary
Highway via
https://www.openstreetmap.org/way/144077977#map=17/-27.66335/152.73924,
through the traffic lights, then taken the on ramp we're talking about to
go back up onto the Highway, your speed would be 60 - 60 - 100 as there's a
60 sign on that off-ramp. So you'd, quite legally, have 2 different speed
limits on that stretch of road!

Thanks

Graeme
___
Talk-au mailing list
Talk-au@openstreetmap.org
https://lists.openstreetmap.org/listinfo/talk-au

Re: [talk-au] Editing speed limit in Australia

[Ross Scanlon]

| In some situations, especially on off-ramps, there isn’t any speed 
limit sign at the beginning of the link only at the end of it or in the


| middle. I observed that in these situations the speed limit of the 
motorway is added on the first part of the link. Because this is the


| predominant way of adding speed limit on links, we will map in the 
same way: if there isn’t a speed limit sign at the beginning of the link


| we will add the speed limit of the motorway and other speed limit that 
occurs along the link. If there is a speed limit sign at the beginning | 
of the link (e.g.SL60 in our example) we will add the speed limit in the 
way you mentioned (60 then 100).



What you've said is correct for off ramps but would be incorrect for on 
ramps.


The on ramp speed limit may be determined from the adjoining road(s), as 
the last speed limit sign is the applicable limit until you pass another 
sign.


So in the example given if the 60 sign was not on the link the 
applicable limit would be what it was for Warwick Road, which from 
memory is 70 near that underpass, and this would be the limit up to the 
60 sign.


So for this link it should be 70 - 60 - 100 as you go past the 60 and 
100 signs.


Cheers

Ross



On 09/03/19 02:11, Lacramioara Maghiar - (p) wrote:


Thanks for your response!

I got 80 from the trunk way from which the motorway link leaves.

In some situations, especially on off-ramps, there isn’t any speed 
limit sign at the beginning of the link only at the end of it or in 
the middle. I observed that in these situations the speed limit of the 
motorway is added on the first part of the link. Because this is the 
predominant way of adding speed limit on links, we will map in the 
same way: if there isn’t a speed limit sign at the beginning of the 
link we will add the speed limit of the motorway and other speed limit 
that occurs along the link. If there is a speed limit sign at the 
beginning of the link (e.g.SL60 in our example) we will add the speed 
limit in the way you mentioned (60 then 100).


Best,

Lacri

*From:* Graeme Fitzpatrick 
*Sent:* Thursday, February 28, 2019 12:19 AM
*To:* Lacramioara Maghiar - (p) 
*Cc:* talk-au@openstreetmap.org
*Subject:* Re: [talk-au] Editing speed limit in Australia

Hi Lacri

On Wed, 27 Feb 2019 at 21:56, Lacramioara Maghiar - (p) 
<mailto:lacramioara.magh...@telenav.com>> wrote:


Hi all,

I’m writing you regarding the speed limit mapping in Australia.

Specifically, how would you add the speed limit on a motorway link
where the speed limit sign appears in the field towards the end/in
the middle of the link?

In Qld at least (& I think Aust-wide) speed limits officially change 
at the sign - you may start accelerating as you pass it, not before; 
but you must start slowing early so you're at the lower limit as you 
pass the sign.


Please take a look at the following example:
https://www.openstreetmap.org/way/37282555. Here, there is a speed
limit sign of 100 (SL100 hereafter) in the middle of the motorway
link. You can see the sign here:

https://www.mapillary.com/app/?focus=photo=cTDOkTXf0M0gVBjem4mt9A=-27.664412022684786=152.7436576757009=17

<https://linkprotect.cudasvc.com/url?a=https%3a%2f%2fwww.mapillary.com%2fapp%2f%3ffocus%3dphoto%26pKey%3dcTDOkTXf0M0gVBjem4mt9A%26lat%3d-27.664412022684786%26lng%3d152.7436576757009%26z%3d17=E,1,Dr9tRyo_JV7aLrJTI5H8eB_cGPOQYwUzZHu7vqnOcZUHg9O7IuFsCaZZnaTALecbyZ-jbVucut0EZjGJmPSAbExe_qqJQFEGjOtx8VOC58l8myJR5XQY=1>.


In which way would you add the speed limit information in the
above-mentioned case:

 1. maxspeed=80 until the SL100 sign and maxspeed=100 until the
end of the link?

I'm not sure where you got 80 from? I can only see a 60 sign at the 
start of the link 
https://www.mapillary.com/app/?lat=-27.663581886206885=152.73979205152136=17=0.49548370263958935=0.50767663189853=0=B-1LcWLyCAjIQqhNjTQ7AQ 
<https://linkprotect.cudasvc.com/url?a=https%3a%2f%2fwww.mapillary.com%2fapp%2f%3flat%3d-27.663581886206885%26lng%3d152.73979205152136%26z%3d17%26x%3d0.49548370263958935%26y%3d0.50767663189853%26zoom%3d0%26pKey%3dB-1LcWLyCAjIQqhNjTQ7AQ=E,1,VJy80ltGkmFEycG1wSxU0pFFSi4mqdzKkwIchqbf-uGbYO0hoK9VYP3-n_3S9-g4xBFJwAWHD2gHsrDeoWScqeT9zGXMl_oFkwA_02lw=1>, 
& speed then jumps to 100 just before merging out onto the Cunningham 
Highway


 1. maxspeed=80 represents the speed limit of the trunk way from
which the motorway link leaves.

Welcome to Australian roads! Just because it's a trunk road, doesn't 
necessarily mean it's got an appropriate speed limit :-(


 2. nothing until the SL100 sign but maxspeed=100 starting with
the appearance of the sign in the field?

60, not "nothing" between the 2 signs, then 100.

Hope that helps!


Thanks

Graeme



___
Talk-au mailing list
Talk-au@openstreetmap.org
https://l

Re: [talk-au] Editing speed limit in Australia

[Lacramioara Maghiar - (p)]

Thanks for your response!

I got 80 from the trunk way from which the motorway link leaves.
In some situations, especially on off-ramps, there isn’t any speed limit sign 
at the beginning of the link only at the end of it or in the middle. I observed 
that in these situations the speed limit of the motorway is added on the first 
part of the link. Because this is the predominant way of adding speed limit on 
links, we will map in the same way: if there isn’t a speed limit sign at the 
beginning of the link we will add the speed limit of the motorway and other 
speed limit that occurs along the link. If there is a speed limit sign at the 
beginning of the link (e.g.SL60 in our example) we will add the speed limit in 
the way you mentioned (60 then 100).

Best,
Lacri

From: Graeme Fitzpatrick 
Sent: Thursday, February 28, 2019 12:19 AM
To: Lacramioara Maghiar - (p) 
Cc: talk-au@openstreetmap.org
Subject: Re: [talk-au] Editing speed limit in Australia

Hi Lacri

On Wed, 27 Feb 2019 at 21:56, Lacramioara Maghiar - (p) 
mailto:lacramioara.magh...@telenav.com>> wrote:
Hi all,

I’m writing you regarding the speed limit mapping in Australia.
Specifically, how would you add the speed limit on a motorway link where the 
speed limit sign appears in the field towards the end/in the middle of the link?

In Qld at least (& I think Aust-wide) speed limits officially change at the 
sign - you may start accelerating as you pass it, not before; but you must 
start slowing early so you're at the lower limit as you pass the sign.

Please take a look at the following example: 
https://www.openstreetmap.org/way/37282555. Here, there is a speed limit sign 
of 100 (SL100 hereafter) in the middle of the motorway link. You can see the 
sign here: 
https://www.mapillary.com/app/?focus=photo=cTDOkTXf0M0gVBjem4mt9A=-27.664412022684786=152.7436576757009=17<https://linkprotect.cudasvc.com/url?a=https%3a%2f%2fwww.mapillary.com%2fapp%2f%3ffocus%3dphoto%26pKey%3dcTDOkTXf0M0gVBjem4mt9A%26lat%3d-27.664412022684786%26lng%3d152.7436576757009%26z%3d17=E,1,Dr9tRyo_JV7aLrJTI5H8eB_cGPOQYwUzZHu7vqnOcZUHg9O7IuFsCaZZnaTALecbyZ-jbVucut0EZjGJmPSAbExe_qqJQFEGjOtx8VOC58l8myJR5XQY=1>.
In which way would you add the speed limit information in the above-mentioned 
case:

  1.  maxspeed=80 until the SL100 sign and maxspeed=100 until the end of the 
link?
I'm not sure where you got 80 from? I can only see a 60 sign at the start of 
the link 
https://www.mapillary.com/app/?lat=-27.663581886206885=152.73979205152136=17=0.49548370263958935=0.50767663189853=0=B-1LcWLyCAjIQqhNjTQ7AQ<https://linkprotect.cudasvc.com/url?a=https%3a%2f%2fwww.mapillary.com%2fapp%2f%3flat%3d-27.663581886206885%26lng%3d152.73979205152136%26z%3d17%26x%3d0.49548370263958935%26y%3d0.50767663189853%26zoom%3d0%26pKey%3dB-1LcWLyCAjIQqhNjTQ7AQ=E,1,VJy80ltGkmFEycG1wSxU0pFFSi4mqdzKkwIchqbf-uGbYO0hoK9VYP3-n_3S9-g4xBFJwAWHD2gHsrDeoWScqeT9zGXMl_oFkwA_02lw=1>,
 & speed then jumps to 100 just before merging out onto the Cunningham Highway


  1.  maxspeed=80 represents the speed limit of the trunk way from which the 
motorway link leaves.
Welcome to Australian roads! Just because it's a trunk road, doesn't 
necessarily mean it's got an appropriate speed limit :-(


  1.  nothing until the SL100 sign but maxspeed=100 starting with the 
appearance of the sign in the field?
60, not "nothing" between the 2 signs, then 100.

Hope that helps!

Thanks

Graeme
___
Talk-au mailing list
Talk-au@openstreetmap.org
https://lists.openstreetmap.org/listinfo/talk-au

Re: [talk-au] Editing speed limit in Australia

[Graeme Fitzpatrick]

Hi Lacri

On Wed, 27 Feb 2019 at 21:56, Lacramioara Maghiar - (p) <
lacramioara.magh...@telenav.com> wrote:

> Hi all,
>
>
>
> I’m writing you regarding the speed limit mapping in Australia.
>
> Specifically, how would you add the speed limit on a motorway link where
> the speed limit sign appears in the field towards the end/in the middle of
> the link?
>

In Qld at least (& I think Aust-wide) speed limits officially change at the
sign - you may start accelerating as you pass it, not before; but you must
start slowing early so you're at the lower limit as you pass the sign.


> Please take a look at the following example:
> https://www.openstreetmap.org/way/37282555. Here, there is a speed limit
> sign of 100 (SL100 hereafter) in the middle of the motorway link. You can
> see the sign here:
> https://www.mapillary.com/app/?focus=photo=cTDOkTXf0M0gVBjem4mt9A=-27.664412022684786=152.7436576757009=17.
>
>
> In which way would you add the speed limit information in the
> above-mentioned case:
>
>1. maxspeed=80 until the SL100 sign and maxspeed=100 until the end of
>the link?
>
> I'm not sure where you got 80 from? I can only see a 60 sign at the start
of the link
https://www.mapillary.com/app/?lat=-27.663581886206885=152.73979205152136=17=0.49548370263958935=0.50767663189853=0=B-1LcWLyCAjIQqhNjTQ7AQ,
& speed then jumps to 100 just before merging out onto the Cunningham
Highway


>
>1. maxspeed=80 represents the speed limit of the trunk way from which
>the motorway link leaves.
>
> Welcome to Australian roads! Just because it's a trunk road, doesn't
necessarily mean it's got an appropriate speed limit :-(


>
>1. nothing until the SL100 sign but maxspeed=100 starting with the
>appearance of the sign in the field?
>
> 60, not "nothing" between the 2 signs, then 100.

Hope that helps!

Thanks

Graeme
___
Talk-au mailing list
Talk-au@openstreetmap.org
https://lists.openstreetmap.org/listinfo/talk-au

[talk-au] Editing speed limit in Australia

[Lacramioara Maghiar - (p)]

Hi all,

I'm writing you regarding the speed limit mapping in Australia.
Specifically, how would you add the speed limit on a motorway link where the 
speed limit sign appears in the field towards the end/in the middle of the link?
Please take a look at the following example: 
https://www.openstreetmap.org/way/37282555. Here, there is a speed limit sign 
of 100 (SL100 hereafter) in the middle of the motorway link. You can see the 
sign here: 
https://www.mapillary.com/app/?focus=photo=cTDOkTXf0M0gVBjem4mt9A=-27.664412022684786=152.7436576757009=17.
In which way would you add the speed limit information in the above-mentioned 
case:

  1.  maxspeed=80 until the SL100 sign and maxspeed=100 until the end of the 
link? maxspeed=80 represents the speed limit of the trunk way from which the 
motorway link leaves.

or

  1.  nothing until the SL100 sign but maxspeed=100 starting with the 
appearance of the sign in the field?


Many thanks!
Lacri

___
Talk-au mailing list
Talk-au@openstreetmap.org
https://lists.openstreetmap.org/listinfo/talk-au