Re: [Talk-is] OSM Iceland road network data analysis

2017-04-27 Thread Svavar Kjarrval 
Hæ!

One possible reason for the difference could be that Vegagerðin's file
only includes the road segments they deem themselves responsible for. If
the road itself continues and under the same name, it could affect the
results. Sometimes we don't have any information to indicate a name
change or we didn't have a reason to suspect a different name when
extending the wayline. Some unknowing users could also have extended the
road number assignment to other parts of the way, thinking that it was
omitted by accident. The possibilities are numerous.

However, there is some other data from Vegagerðin which could be used to
enhance the road system. It's located at
https://osm.is/gogn/Vegager%C3%B0in/ . It's from a few years ago but I
could send a request for more recent data. If I remember correctly, the
licence wasn't clear or they didn't state one.

-Svavar Kjarrval

On mán 19.des 2016 08:16, michael.hofe...@a1.net wrote:
> Komið þið sæl og blessuð.
>  
> My Icelandic language skills are not good enough to write a letter so
> I’m writing my message in English.
>  
> I did in the last time a road network analysis on OSM Iceland data.
> Here I checked with the road list from vegagerdin
> http://www.vegagerdin.is/vefur2.nsf/Files/Vegaskra_2015/$file/Vegaskra_2015.xlsx
> , if the roads and segments of roads are mapped correspondingly to the
> list.
>  
> As mapping basis I took the information from the OSM Iceland Wiki.
> Unfortunately this wiki wasn’t actualised in the last years, probably
> because it’s an awful manual work. I don´t know if there exist a plug
> in to actualise the road list in the wiki with a set of
> Overpass-queries. The information there is included in OSM, but not
> extracted and processed to the wiki yet.
>  
> In the road list from vegagerdin exist a new road network type "Sx".
> The Kjalvegur for example has this network type. I understand it as
> primary highland route, but left the mapped road as it was.
>  
> I focused on the 1 to 3 digits road reference numbers, the four digit
> roads I only looked at, when I strolled over it. When I found
> information about the road, mostly in OSM I tried to fix it immediately.
>  
> A few roads I found which I couldn’t identify in OSM. The road might
> exist with a different name and without the mapped reference number.
> As I can’t state a fixme statement on elements which I didn’t find, I
> list the roads here:
> 378 01  Skíðaskálavegur Hringvegur (1-d8), við Skíðaskála Hringvegur
> (1-d8)
> 413 03  Breiðholtsbraut ReykjanesbrautHafnarfjarðarvegur (40)
> 419 01  Höfðabakki  Reykjanesbraut  Nesbraut (49)
> 419 02  Höfðabakki  NesbrautHallsvegur (432)
> 470 01  Fjarðarbraut  Hafnarfjarðarvegur  Hafnarfjörður,
> Lækjargata
> 470 02  Fjarðarbraut  ÁstorgHafnarsvæði
> 470 02  Fjarðarbraut  Hafnarfjörður, Lækjargata Hafnarfjörður,
> Hvaleyrarbraut
> 628 01  Hjarðardalsvegur  Vestfjarðavegur (60-43) Hjarðardalur
> 713 01  Hvítserksvegur  Vatnsnesvegur (711-05)  711-05Hvítserkur,
> bílastæði
> 757 01  Villinganesvegur  Skagafjarðarvegur (752-03)Villinganes
> 830 02  Svalbarðseyrarvegur Hringvegur (1-q2)   Svalbarðseyri,
> Laugartún
> 845 02  Aðaldalsvegur Staðarbraut (854-01)Norðausturvegur (85-03)
> 846 01  Austurhlíðarvegur Hringvegur (1-q8)   Stóru-Laugar
> 859 01  Hafnarvegur Húsavík Norðausturvegur (85-05) Hafnarsvæði,
> endi gangbrautar
> 865 01  Gilsbakkavegur  Norðausturvegur (85-12)   Gilhagi 1
> 897 01  Svalbarðstunguvegur Norðausturvegur (85-24) Fjallalækjarsel
> 942 01  Steinsvaðsvegur Borgarfjarðarvegur (94-04)  Stóra-Steinsvað
> 942 02  Tjarnarlandsvegur Steinsvaðsvegur (942-01)Tjarnarland
> 948 01  Gilsárteigsvegur  Borgarfjarðarvegur (94-03)Gilsárteigur 1
> 949 01  Þrándarstaðavegur Borgarfjarðarvegur (94-01)Þrep
> 2284  01  Sólheimahjáleiguvegur Mýrdalsjökulsvegur (222-01)  
> Sólheimahjáleiga
> 2285  01  Ytri-Sólheimavegur  Mýrdalsjökulsvegur (222-01)
> Ytri-Sólheimar 3
> 2286  01  Ytri-Sólheimavegur 1  Mýrdalsjökulsvegur (222-02)  
> Ytri-Sólheimar 1
> 7079  01  Núpsdalstunguvegur  Arnarvatnsvegur (578-05)  Núpsdalstunga
>  
> The following roads mapped in OSM I couldn´t find in the road list
> from vegagerdin or the mapped road don’t correspond with the
> information in the vegagerdin road list:
> 882 01  Leyningshólavegur Villingadalsvegur (8370-01)   Leyningshólar
> 915   Vesturárdalsvegur
> 2001  01
>  
> There are lots of roads in the list, where I couldn’t find the places
> from the list, especially when the road leads to a farm or house.
>  
> The list also gives the road length, where the length is measured over
> ground I guess. OSM has no elevation in the map so the measured road
> length is as the ground would be flat. The difference between these
> values should be under 10%. Unfortunately the difference on lots of
> the roads is much higher (up to 50%).
> One reason for this could be that the

Re: [Talk-is] OSM Iceland road network data analysis

2016-12-19 Thread Jóhannes Birgir Jensson 

Thank you for this Michael.

Driveways are an interesting case - they are an obligation for the 
Vegagerðin *as long* as it is a residence. However if it is no longer a 
full time residence it is stricken of their list of maintained roads. 
Thus we can have these smaller roads appearing and disappearing from the 
official data.


We will look into your observations.


Regards,
Jóhannes

On 19.12.2016 08:16, michael.hofe...@a1.net wrote:

Komið þið sæl og blessuð.

My Icelandic language skills are not good enough to write a letter so 
I’m writing my message in English.


I did in the last time a road network analysis on OSM Iceland data. 
Here I checked with the road list from vegagerdin 
http://www.vegagerdin.is/vefur2.nsf/Files/Vegaskra_2015/$file/Vegaskra_2015.xlsx 
, if the roads and segments of roads are mapped correspondingly to the 
list.


As mapping basis I took the information from the OSM Iceland Wiki. 
Unfortunately this wiki wasn’t actualised in the last years, probably 
because it’s an awful manual work. I don´t know if there exist a plug 
in to actualise the road list in the wiki with a set of 
Overpass-queries. The information there is included in OSM, but not 
extracted and processed to the wiki yet.


In the road list from vegagerdin exist a new road network type "Sx". 
The Kjalvegur for example has this network type. I understand it as 
primary highland route, but left the mapped road as it was.


I focused on the 1 to 3 digits road reference numbers, the four digit 
roads I only looked at, when I strolled over it. When I found 
information about the road, mostly in OSM I tried to fix it immediately.


A few roads I found which I couldn’t identify in OSM. The road might 
exist with a different name and without the mapped reference number. 
As I can’t state a fixme statement on elements which I didn’t find, I 
list the roads here:
378 01  Skíðaskálavegur Hringvegur (1-d8), við Skíðaskála Hringvegur 
(1-d8)

413 03  Breiðholtsbraut Reykjanesbraut Hafnarfjarðarvegur (40)
419 01  Höfðabakki  Reykjanesbraut  Nesbraut (49)
419 02  Höfðabakki  NesbrautHallsvegur (432)
470 01  Fjarðarbraut  Hafnarfjarðarvegur  Hafnarfjörður, 
Lækjargata

470 02  Fjarðarbraut  ÁstorgHafnarsvæði
470 02  Fjarðarbraut  Hafnarfjörður, Lækjargata Hafnarfjörður, 
Hvaleyrarbraut

628 01  Hjarðardalsvegur  Vestfjarðavegur (60-43) Hjarðardalur
713 01  Hvítserksvegur  Vatnsnesvegur (711-05)  711-05 Hvítserkur, 
bílastæði

757 01  Villinganesvegur  Skagafjarðarvegur (752-03) Villinganes
830 02  Svalbarðseyrarvegur Hringvegur (1-q2)   Svalbarðseyri, 
Laugartún

845 02  Aðaldalsvegur Staðarbraut (854-01)Norðausturvegur (85-03)
846 01  Austurhlíðarvegur Hringvegur (1-q8)   Stóru-Laugar
859 01  Hafnarvegur Húsavík Norðausturvegur (85-05) Hafnarsvæði, endi 
gangbrautar

865 01  Gilsbakkavegur  Norðausturvegur (85-12)   Gilhagi 1
897 01  Svalbarðstunguvegur Norðausturvegur (85-24) Fjallalækjarsel
942 01  Steinsvaðsvegur Borgarfjarðarvegur (94-04) Stóra-Steinsvað
942 02  Tjarnarlandsvegur Steinsvaðsvegur (942-01)Tjarnarland
948 01  Gilsárteigsvegur  Borgarfjarðarvegur (94-03) Gilsárteigur 1
949 01  Þrándarstaðavegur Borgarfjarðarvegur (94-01)Þrep
2284  01  Sólheimahjáleiguvegur Mýrdalsjökulsvegur (222-01) 
Sólheimahjáleiga

2285  01  Ytri-Sólheimavegur  Mýrdalsjökulsvegur (222-01) Ytri-Sólheimar 3
2286  01  Ytri-Sólheimavegur 1  Mýrdalsjökulsvegur (222-02) 
Ytri-Sólheimar 1

7079  01  Núpsdalstunguvegur  Arnarvatnsvegur (578-05) Núpsdalstunga

The following roads mapped in OSM I couldn´t find in the road list 
from vegagerdin or the mapped road don’t correspond with the 
information in the vegagerdin road list:

882 01  Leyningshólavegur Villingadalsvegur (8370-01) Leyningshólar
915   Vesturárdalsvegur
2001  01

There are lots of roads in the list, where I couldn’t find the places 
from the list, especially when the road leads to a farm or house.


The list also gives the road length, where the length is measured over 
ground I guess. OSM has no elevation in the map so the measured road 
length is as the ground would be flat. The difference between these 
values should be under 10%. Unfortunately the difference on lots of 
the roads is much higher (up to 50%).
One reason for this could be that the road with certain reference 
number is much further mapped as vegagerdin states it. But on some 
roads also the mapping quality might be poor. But also on these I 
didn’t focus. I might try to improve the map in future when there is 
some time for it.


Also I realised that outside Reykjavík in the villages most of the 
schools aren’t mapped.  The schools are used in summer as guesthouse, 
so only the tourist infrastructure is mapped. Is this still correct? 
How to map this in OSM?


I hope that the Icelandic community have a look on some of the items.


Gleðileg jól og farsælt komandi ár


Michal Hofer


__

[Talk-is] OSM Iceland road network data analysis

2016-12-19 Thread michael . hofer50 
Komið þið sæl og blessuð.
   
  My Icelandic language skills are not good enough to write a letter so 
I’m writing my message in English.
   
  I did in the last time a road network analysis on OSM Iceland data. Here I 
checked with the road list from vegagerdin 
http://www.vegagerdin.is/vefur2.nsf/Files/Vegaskra_2015/$file/Vegaskra_2015.xlsx
 

 , if the roads and segments of roads are mapped correspondingly to the list.
   
  As mapping basis I took the information from the OSM Iceland Wiki. 
Unfortunately this wiki wasn’t actualised in the last years, probably 
because it’s an awful manual work. I don´t know if there exist a 
plug in to actualise the road list in the wiki with a set of Overpass-queries. 
The information there is included in OSM, but not extracted and processed to 
the wiki yet.
   
  In the road list from vegagerdin exist a new road network type "Sx". The 
Kjalvegur for example has this network type. I understand it as primary 
highland route, but left the mapped road as it was.
   
  I focused on the 1 to 3 digits road reference numbers, the four digit roads I 
only looked at, when I strolled over it. When I found information about the 
road, mostly in OSM I tried to fix it immediately.
   
  A few roads I found which I couldn’t identify in OSM. The road might 
exist with a different name and without the mapped reference number. As I 
can’t state a fixme statement on elements which I didn’t find, I 
list the roads here:
  378 01  Skíðaskálavegur Hringvegur (1-d8), við 
Skíðaskála Hringvegur (1-d8)
  413 03  Breiðholtsbraut 
Reykjanesbraut   
 Hafnarfjarðarvegur (40)
  419 01  Höfðabakki  
Reykjanesbraut 
 Nesbraut (49)
  419 02  Höfðabakki  
Nesbraut   
 Hallsvegur (432)
  470 01  Fjarðarbraut  
Hafnarfjarðarvegur  
Hafnarfjörður, Lækjargata
  470 02  Fjarðarbraut  
Ástorg   
 Hafnarsvæði
  470 02  Fjarðarbraut  Hafnarfjörður, 
Lækjargata Hafnarfjörður, Hvaleyrarbraut
  628 01  Hjarðardalsvegur  Vestfjarðavegur 
(60-43) Hjarðardalur
  713 01  Hvítserksvegur  Vatnsnesvegur (711-05)  
711-05    Hvítserkur, bílastæði
  757 01  Villinganesvegur  Skagafjarðarvegur 
(752-03)    Villinganes
  830 02  Svalbarðseyrarvegur Hringvegur 
(1-q2)   Svalbarðseyri, Laugartún
  845 02  Aðaldalsvegur Staðarbraut 
(854-01)    Norðausturvegur (85-03)
  846 01  Austurhlíðarvegur Hringvegur 
(1-q8)   Stóru-Laugar
  859 01  Hafnarvegur Húsavík Norðausturvegur 
(85-05) Hafnarsvæði, endi gangbrautar
  865 01  Gilsbakkavegur  Norðausturvegur 
(85-12)   Gilhagi 1
  897 01  Svalbarðstunguvegur Norðausturvegur 
(85-24) Fjallalækjarsel
  942 01  Steinsvaðsvegur Borgarfjarðarvegur 
(94-04)  Stóra-Steinsvað
  942 02  Tjarnarlandsvegur Steinsvaðsvegur (942-01)    
Tjarnarland
  948 01  Gilsárteigsvegur  Borgarfjarðarvegur 
(94-03)    Gilsárteigur 1
  949 01  Þrándarstaðavegur Borgarfjarðarvegur 
(94-01)    Þrep
  2284  01  Sólheimahjáleiguvegur 
Mýrdalsjökulsvegur (222-01)   
Sólheimahjáleiga
  2285  01  Ytri-Sólheimavegur  
Mýrdalsjökulsvegur (222-01) 
Ytri-Sólheimar 3
  2286  01  Ytri-Sólheimavegur 1  
Mýrdalsjökulsvegur (222-02)   Ytri-Sólheimar 1
  7079  01  Núpsdalstunguvegur  Arnarvatnsvegur 
(578-05)  Núpsdalstunga
   
  The following roads mapped in OSM I couldn´t find in the road list from 
vegagerdin or the mapped road don’t correspond with the information in 
the vegagerdin road list:
  882 01  Leyningshólavegur Villingadalsvegur (8370-01)   
Leyningshólar
  915   Vesturárdalsvegur
  2001  01
   
  There are lots of roads in the list, where I couldn’t find the places 
from the list, especially when the road leads to a farm or house.
   
  The list also gives the road length, where the length is measured over ground 
I guess. OSM has no elevation in the map so the measured road length is as the 
ground would be flat. The difference between these values should be under 10%. 
Unfortunately the difference on lots of the roads is much higher (up to 50%).
  One reason for this could be that the road with certain reference number is 
much further mapped as vegagerdin states it. But on some roads also the mapping 
quality might be poor. But also on these I didn’t focus. I might try to 
improve the map in future when there is some time for it.
   
  Also I realised that outside Reykjavík in the villages most of the 
schools aren’t mapped.  The schools are used in summer as 
guesthouse, so only the tourist infrastructure is mapped. Is this still 
correct? How to map this in OSM?
   
  I hope that the Icelandic community have a look on some of the items.
   
   
  Gleðileg jól og farsælt komandi ár
   
   
  Michal Hofer
___
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