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en:bdltc_roads [2013/11/27 11:20]
wato [Observations]
en:bdltc_roads [2013/11/27 11:46] (current)
wato [Observations]
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-====Observations====+=====Observations=====
  
-===Missing elements of roads===+====Missing elements of roads====
 **Description**: Middle parts of road lines are not assigned to the road name. {{ :en:missing_middle_parts.png?nolink&600 |}} **Description**: Middle parts of road lines are not assigned to the road name. {{ :en:missing_middle_parts.png?nolink&600 |}}
 +**Solution** : The script that was eliminating single nameless parts embedded by two parts with the same name was extended to merge all unnamed part of a road that are neighbors to one. 
  
-===Mis-assignments of road names of crossings===+====Mis-assignments of road names at crossings====
 **Description**: Parts of known roads are misassigned, mainly at crossings. At the crossing of road A and B the first part of road B is misassigned as part of road A.  **Description**: Parts of known roads are misassigned, mainly at crossings. At the crossing of road A and B the first part of road B is misassigned as part of road A. 
 {{ :en:missasignment_crossing.png?nolink& |}} {{ :en:missasignment_crossing.png?nolink& |}}
 +**Solution** : A script was developed that is checking if more than one name occurs between two crossing. These features are marked as "à verifier"
  
-===Road features are not conform to orthophoto ===+====Road features are not conform to orthophoto ====
 **Description**: Road features are not conform to the underlaying orthophoto{{ :en:non_conform_features_orthofoto.png?nolink&900 |}} **Description**: Road features are not conform to the underlaying orthophoto{{ :en:non_conform_features_orthofoto.png?nolink&900 |}}
  
-===Orthophoto is not conform to cadastral land register===+**Solution** : None.
  
 +====Orthophoto is not conform to cadastral land register====
  
-**Descrition**: Orthophoto is not uptodat, there are parcels with no visible roads.{{ :en:non_conform_orthofoto.png?nolink&600 |}} 
  
-==Small fragments of roads==+**Descrition**: Orthophoto is not up-to-date, there are parcels with no visible roads.{{ :en:non_conform_orthofoto.png?nolink&600 |}} 
 + 
 +====Small fragments of roads====
  
 **Description**: Small road fragments (less 15-20 m) weren't assigned to any address. The names between crossing script detect those cases.  **Description**: Small road fragments (less 15-20 m) weren't assigned to any address. The names between crossing script detect those cases. 
  
-**Improvement**: All small fragments less then 20 m (minimal size of a single road?) should copy the name of the neighbor if they are between the same pair of crossing.+**Improvement propose**: All small fragments less then 20 m (minimal size of a single road?) should copy the name of the neighbor if they are between the same pair of crossing.
  
 {{:en:fregments_of_known_roads.png?nolink&500|}}{{:en:fregments_of_known_roads02.png?nolink&500|}} {{:en:fregments_of_known_roads.png?nolink&500|}}{{:en:fregments_of_known_roads02.png?nolink&500|}}
 +
 +**Solution**: (27.11.2013) A script was developed that is using the between crossing segments and checks if there is one known and one unknown part, if the unknown part is shorter then 20 m, the name of the known part was set as name of the short part.
  
  
en/bdltc_roads.txt · Last modified: 2013/11/27 11:46 by wato
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