CURRENT LOCATIONS IN AFRICA THAT HAVE SEMAPHORE SIGNALS
Semaphore signals in Malmesbury, near Cape Town -one of the later surviving locations in South Africa, but it lost its mechanical signalling around 2007.
The following lists known locations where semaphore signals still exist in South Africa as at June 2009. Where there is a link, this site features a page on that location
WESTERN CAPE (9)Cape Main Line (Bellville- Wellington section) (2): Paarl , Huguenot .
KWA-ZULU-NATAL (4)Old Main Line (Rossburgh-Pinetown) (4): Bellair, Malvern, Northdene, Pinetown.
GAUTENG (9)Apex-Welgedag (2): Modrea, Geduld
FREE STATE (6)Kroonstad-Vereeniging (5): Westleigh, Heuningspruit, Rooiwal, Koppies, Viljoensdrif
TOTAL RECORDED HERE: 28
It should be noted that this is subject to change- I have tried to be as accurate as possible based on recent reports and personal observation, but it is possible that some of these locations have been re-signalled. There are also other locations that may have not been reported here although I think this list is quite comprehensive. Recent resignallings of semaphore sections include Sishen-Postmasburg and Delmas-Ogies as well as Malmesbury.
The bottom line is that there are unlikely to be more than 30 locations in South Africa that currently have semaphores. It should also be noted that there are some mechanical boxes still controlling areas signalled by color lights, as well as some gate boxes in color light areas. Some of these are featured on this site, see Dundee (the largest mechanical frame remaining in South Africa), Kraaifontein, Klapmuts, False Bay and Kenilworth. Somerset West has recently been re-opened for train control and contains a mechanical frame but is not in use.
From what I have recall from reading somewhere on the web/in print, the Tazara line between Kapiri Mposhi (Zambia) and Dar es Salaam (Tanzania) still has some semaphores.
On a visit to Accra in Ghana, I recall there still being some semaphores, although they looked very run down.