sentences:  Several systems within France are DOO.Lille
  
  Paris Métro,
  
  The S-Bahn rapid transit system in Berlin and Hamburg were using platform train dispatchers to ensure all doors are closed and a train can safely start for the next section.Although there were a couple of test runs since the 1970s these mass rapid transit systems were the last train systems in Germany to be converted to a one-man operation as rapid transit requires to ensure a minimum time to call at a station especially in rush hours.