Geospatial data for Toronto's train lines (lines that are active and scheduled for shutdown in late 2023) was retrieved from the Toronto Open Data Portal. This dataset contains the following columns

1. OBJECTID
   1. identitier for train route
2. ROUTE_NAME (used in EDA)
   1. name of train line
3. RID
   1. train line number (1, 2, 3 or 4)
4. geometry (used in EDA, preparing data for clustering)
   1. geospatial geometry of train route defined by lat-lon co-ordinates that comprise a line