"John Rowland" wrote

Does Angel Road still have a bad service?

You're right - Angel Road and Northumberland Park each only have 1 tph. The
other Northumberland Park station (LUL Victoria Line) has a better service,
but it's for staff only, and inside the Victoria Line depot. ISTR a proposal
for redevelopment of the area, which would have involved the LUL station
becoming a public station.

Peter