Siemens to supply signalling system for Algiers metro Line 1 extension August 15, 2013 | Middle East & Africa News Enterprise Metro d’Alger (EMA), the metro operator in Algeria, has awarded a EUR20 million contract to Siemens to a supply signalling system for the Algiers metro Line 1 extension. Under ... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password