redundant admin boundaries in Ireland

Hi,

I am currently testing my OSM Path Analyzer, which is supposed to recognize redundant admin boundaries.

It checks if there are several border relations with the same structure. These are usually double admin relations with the same tags and often the same members.

In Ireland it found the following bugs:


 IRL     | 5857133 | Athy Municipal District                                     | 8     | 8*    | {2,6,8,8}            
 IRL     | 8449476 | Athy Municipal District (2019)                              | 8     | 8*    | {2,6,8,8}                    
 IRL     | 5857135 | Celbridge-Leixlip Municipal District                        | 8     | 8*    | {2,6,8,8}            
 IRL     | 8448661 | Celbridge-Leixlip Municipal District (2019)                 | 8     | 8*    | {2,6,8,8}            
 IRL     | 8448101 | Clane-Maynooth Municipal District (2019)                    | 8     | 8*    | {2,6,8,8}                      
 IRL     | 5857136 | Kildare-Newbridge Municipal District                        | 8     | 8*    | {2,6,8,8}            
 IRL     | 8449477 | Kildare-Newbridge Municipal District (2019)                 | 8     | 8*    | {2,6,8,8}            
 IRL     | 5857137 | Maynooth Municipal District                                 | 8     | 8*    | {2,6,8,8}            
 IRL     | 5857138 | Naas Municipal District                                     | 8     | 8*    | {2,6,8,8}            
 IRL     | 8449475 | Naas Municipal District (2019) 

obviously these are changes at the turn of the year.

My suggestion: set the “old” rels to boundary=historic and additionally add end_date=2018_12_31.

Or delete them :wink:

Regards
walter, gemany

ps: there are more bugs on higher admin levels but that has to wait.

The general attitude in Ireland is that historic boundaries should be kept, but marked as historic. History is a core part of geography. :slight_smile:

Examples include boundary=
historic_church_province (4),
historic_diocese (38),
historic_locality (1),
historic_parish (1708),
historic_parish_union (2),
historic_political (13),