In the UK there are two waypoints TIMBA and LUMBA that have the same coordinates N505644N and 0001524E. Does anyone know why?Also they pronounce as "timber" and "lumber" which are both terms for wood.

There are many duplicate waypoints worldwide.The most common I see are on approach plates. An RNAV/GPS approach might use one waypoint name, while a VOR or an ILS approach might use a waypoint at the same location with a different name.I have no idea if the system is moving toward one waypoint for all approaches, or the opposite.

I checked the UK ENR (as I should have done earlier :() and found that although these two waypoints have the same location and purpose (London TMA - EGKK STARs) they are defined differently:LUMBA - OCK VOR/DME fix 132 degM/34 nmTIMBA - MAY VOR/DME fix 130 degM/7 nm