[Tagging] start_date question

[Nathan Edgars II]

If you have a highway=cycleway railway=abandoned, what does the 
start_date tag refer to?
*start of rail operations?
*abandonment of the railway?
*opening of the cycleway?
_______________________________________________
Tagging mailing list
Tagging@openstreetmap.org
http://lists.openstreetmap.org/listinfo/tagging