Greece

From OpenStreetMap Wiki
Jump to navigation Jump to search
Greece - Other languages
V・T・E
Greece, Europe
Wikidata

latitude: 38.310, longitude: 24.489
boundary: 192307
Browse map of Greece 38°18′36.00″ N, 24°29′20.40″ E
Edit map
External links:
Use this template for your locality

Greece is a country in Europe at latitude 38°18′36.00″ North, longitude 24°29′20.40″ East.

Greece 640.png

Community

WANTED: a healthy and thriving community of Greek road fans and mappers from Greece and all corners of the world. Enquire below:

People mapping in Greece can add their user page to Category:Users in Greece

Names

See also: Multilingual names

Greek is the official language of Greece, written in the Greek alphabet. By default:

  • name=* & name:el=* is for the Greek name (e.g. Ελλάς)
  • int_name=* is for the Latin transliteration (transcription)*

*Transcription to the Latin alphabet must be according to ISO 843 type 2 (see ISO 843, first page-second column and read the notes).

Popular multilingual names that you may also encounter include those in Albanian, Bulgarian, English, French, Macedonian and Turkish. Multilingual names do not always match the transcription: for example, the French names for Athens and Thessaloniki are Athènes and Thessalonique respectively.

Politically motivated deletions of multilingual names (especially Macedonian and Turkish)[1] are not tolerated on OpenStreetMap, and may result in moderator action. Political discussion should go to, for example, the NationStates forum.

Urban divisions

City Blocks

In Greece, city blocks (Οικοδομικό Τετράγωνο or for sort Ο.Τ.) of each municipality get a number. They should be mapped as an area with -Tag:place=city_block.

Urban Units

City blocks are grouped into Urban Unit (Πολεοδομική Ενότητα) which in most cases (1) correspond to one neighborhood. (2)Some neighorhoods (see in Athens) are divided into multiple Urban Units with the same name (Ampelokipoi I, Ampelokipoi II Greek: Αμπελόκηποι Α, Αμπελόκηποι Β etc). (3)Some urban units include many neighborhoods (Plaka-Monastiraki Greek Πλάκα-Μοναστηράκι). Urban units should be mapped as an area as Tag:place=neighbourhood where as name we put the short name in Greek for example Φλoίσβος and we add a node with Tag:place=neighbourhood in each neighborhood the urban block includes; In the first case (1) we put the node on the center of the urban unit. In the second case (2) we place the node in the center of the two units. In the third case (3) we place the node in the place of each neighborhood within the urban unit.

Urban districts

In large Greek municipalities, urban units are grouped into urban districts (Συνοικίες) which correspond to a suburb. The should me mapped as an area with as Tag:place=suburb and a node with Tag:place=suburb should be placed in the middle.

Neighborhoods

In Greece the term neighborhood (γειτονιά) corresponds to and area larger than that of other countries. In contrast to other countries they do not revolve around one street or square but they are like small settlements. That's why in Greece most neighborhoods should be mapped with the tag place=quarter. Some of them have exactly defined border in the General Poleodomic Plan of the city or town (Γενικό Πολεοδομικό Σχέδιο). In those cases the neighborhood should be mapped as an area with the tag place=quarter with name=Γειτονιά Εξαρχείων and a node should be placed in the center with place=quarter and name=Εξάρχεια (here we use Exarchia as an example).

Administrative divisions

See also: Category:Places in Greece

Since 2011 (and still in 2018), Greece is administratively divided into:

  • 7 decentralized administrations (αποκεντρωμένες διοικήσεις) and 1 autonomous monastic state (αυτόνομη μοναστική πολιτεία);
  • 13 regions or peripheries (περιφέρειες), which are now administrative divisions, but previously grouped (only territorially) the former 54 prefectures or nomes (νομός); the autonomous monastic state is not subdivided into regions;
  • 74 regional units (περιφερειακή ενότητα), which are territorial (not administrative) subdivisions of regions: they replaced 45 of the 54 former prefectures, but 19 regional units were created by subdividing 9 of the 54 former prefectures (the 2 most populated former prefectures, or 7 former prefectures that were covering distant islands); the autonomous monastic state was not subvided into regional units;
  • 332 municipalities (δήμοι); they are further territorially (but no longer administratively) subdivided into municipal units (the former municipalities which were grouped into the new larger municipalities), themselves further subdivided into community (the former municipal districts). Municipalities with their seat having over 100000 citizens are divided into communities (the former municipal districts).
    Greek municipalities map (pre-2019 version) (click to see names).
Admin level Administrative division NUTS level
3 autonomous monastic state
αυτόνομη μοναστική πολιτεία 		N/A
4 decentralized administration
αποκεντρωμένη διοίκηση 		N/A
5 Region
Περιφέρεια 		NUTS 2
6 Regional Unit (former prefecture)
Περιφερειακή Ενότητα (πρώην νομός) 		NUTS 3
7 Municipality
Δήμος 		N/A
8 Municipal Unit (former municipalities)
Δημοτική Ενότητα (πρώην δήμοι) 		N/A
9 Municipal Commune
Δημοτική Κοινότητα 		LAU
10 settlement
οικισμός 		N/A

Decentralized administrations

Highways in Greece

Main article: Greece/Highways
Country motorway trunk primary secondary tertiary unclassified
Greece
(view/edit) 		Αempty Motorways ΕΟempty+E xx National Roads on E-roads (class A)

ΕΟ1 Primary National Roads

E xx E-roads (class A)

ΕΟ2 Secondary National Roads

City-level link roads

ΕΟ3 Tertiary National Roads

Old ΕΟEmpty Old National Roads

ΕΠ Provincial Roads

Town or suburban-level link roads

Priority Road Local roads with priority

Roads leading to settlements

Roads leading to factories, farms, etc

Railways in Greece

Resources

Imagery

From 1 July 2019, Bing, Maxar,[2] Esri, and Mapbox satellite imagery will all be acceptable for nearly all of Greece. All are useful for tracing routes to “isolated” villages and so on, but please respect subsequent developments, because satellite imagery can easily go out of date.

You can easily access satellite imagery from the four providers with iD, and JOSM. If you used JOSM for a long time, you may have to add new satellite imagery manually, via the Preferences menu.

As with all imagery sources in the world, terrain can distort the imagery, making roads appear to deviate from the GPS traces, although GPS traces are not always accurate: sometimes, the scale of deviation can change rapidly. In such cases, the editor should realign the imagery accordingly, but consider the quality and age of the GPS trace as well.

How much you need to realign the imagery will vary by location, firstly because of the frequent updates to the imagery, and also because Greece sits on two tectonic plates (Aegean Sea and Eurasia): both are moving south-west and south respectively, at variable speeds roughly between 7 to 37 millimetres per year.

Overlays/backgrounds

okxe.gr (web page of the former provides us with JOSM layers and detailed road maps

We can add the layers in JOSM, under imagery preferences, and then choose the road network map layer (or any other layer we want).

URL: http://www1.okxe.gr/geoserver/wms/
The legend for the road network map layer can be found here (only 1,2,3,4 and 5 "colors" are valid).

The web version of the road network map, based on the classification by the Directorate of Road Infrastructure (ΔΜΕΟ), can be found here.

Road numbers and names (based on published official documents), although helpful, they do come with some issues (multiple roads with same ref, old names, new sections, roads completely missing, lack of continuity, etc.) and should not be taken too literally. Corrections to easily overlooked errors can be explained with note:highway=*. For example, note:highway=Although OKXE shows this as ΠΕΟ1, this would have left an unacceptable gap between ΕΟ8 and ΕΟ54 ….

Topics

Quality control

Osmose (not affiliated with the train operator) is a major quality assurance tool in Greece: click here to go straight to Greece.

JOSM has a quality control tool as well, and that can be set to use Osmose’s algorithm.

Notes

  1. ↑ Under the Prespa agreement, the country name is North Macedonia (the “Republic of” prefix is optional), and the people and their language are Macedonian.
  2. ↑ Following Maxar’s acquisition of DigitalGlobe, the DigitalGlobe Premium and Standard layers are no longer updated, and will be removed on 30 June 2019. The replacements, Maxar Premium and Standard, and should be used in place of the DigitalGlobe layers, and are readily available on iD and JOSM.

Kaart Groundwork & Editing

Kaart conducts ground surveys for improvements to OSM data. A list of editors can be found on the Kaart wiki page.

  • Mapillary imagery from the Greece drives can be viewed here.

Thessaloniki (June, 2018)

Ground Focus
  • We focused on inputting street names wherever street signs could be found.
  • We drove a lot of one way streets to verify where they begin and end. Many were missing or incorrect in OSM. These have been fixed to the best of our ability.
  • Fixing inaccurate geometry was also a major focus.
Post Processing
  • After the ground survey was conducted, our office team reviewed the footage gathered and updated street names by checking the consistency with current data and physical road signs.
  • The team added several turn restrictions, pedestrian crossings, surfaces to roads, lanes, and additional missing geometry.
Suggested Community Edits
  • We believe that the names we added to the streets in Thessaloniki are 100% accurate. That being said, Greek is not our first language. It is worth always taking a second look to ensure proper spelling of street and POI names.
  • There are still many missing names in this area where we were unable to drive due to time constraints. Additional local user contributions to street names will improve the map substantially.

The ground survey of Thessaloniki, Greece was conducted by Kaart Team members Te-Ika and Whimsical Otter.

Athens (October, 2018)

Ground Focus
  • We focused on inputting street names wherever street signs could be found.
  • One way directions were labeled incorrectly or were missing altogether.
  • Fixing inaccurate geometry was also a major focus.
Post Processing
  • After the ground survey was conducted, our office team reviewed the footage gathered and updated street names by checking the consistency with current data and physical road signs.
  • The team will add turn restrictions, pedestrian crossings, surfaces to roads, lanes, and additional missing geometry.
Suggested Community Edits
  • As with Thessaloniki, we believe that the names we added to the streets in Athens are 100% accurate. Again, Greek is not our first language. It is worth always taking a second look to ensure proper spelling of street and POI names.
  • Ground surveys. There are many areas in Athens that were too dense for us to get to. Further ground verification should be done where possible.
  • There are still many missing names in this area where we were unable to drive due to time constraints. Additional local user contributions to street names will improve the map substantially.

The ground survey of Athens, Greece was conducted by Kaart Team members vespax, pizzagal, LSkalayo, Velocimaptor, Te-Ika, Whimsical Otter, theArchDruid, and Corban8.

Retrieved from "https://wiki.openstreetmap.org/w/index.php?title=Greece&oldid=2782654"