You make plans for this Saturday, check the Journey Planner - all ok. Then you happen to see an engineering work notice:
It does not say this is Emergency late notice Engineering work, so how is the engineering work schedule not in the system yet?
Buses replace trains between Lewisham and Grove Park / Dartford via Sidcup on Saturday 1 and Sunday 2 July
Network Rail is carrying out engineering work between Hither Green and Grove Park / Dartford, closing the lines
...
For Saturday, these changes are not currently shown in the National Rail Enquiries Journey Planner, please check back nearer to the time of travel
For Sunday, you can plan your journey using the National Rail Enquiries
It does not say this is Emergency late notice Engineering work, so how is the engineering work schedule not in the system yet?