Look into PWC in Buffered Stops method

[jwestw]

We have looked into what is currently happening in the NI data processing to calculate if an OA is served or not.

• PWC should be a point (representing the whole of the OA polygon)
• Stop should be a polygon
• Method should be spatial join - probably with the "within" flag

[jwestw]

The problem may be at the stage when the geodataframe is created. gpd is not being forced to use the points in the population dataframe and instead it's defaulting to use the OA boundaries. i.e. it's using the geometry column as default to build the layer

[nkshaw23]

Early investigations show that the PWC dataset ni_pop_wtd_centr_df loaded in line 102 is actually a polygon which implies that pwc_with_pop is a polygon. This df is used in only_la_pwc_with_pop which gets used in the intersection.

Image bewlow shows PWC for E/W/S loaded as points, and PWC for NI loaded as polygons

[nkshaw23]

Line 97 in SDG_NI: Replace path to OA_ni with path to PWC NI dataset

[paigeh-fsa]

I think we can close this now as I have fixed the NI issue with the new dataset @nkshaw23 provided.