Four Lines Modernisation
The Four Lines Modernisation is a resigmalling project for the District Line, Hammersmith & City Line, Circle Line and Metropolitain Line. It is being done in phases known as SMA ( Signal Mitgation Areas) which are numbered 0.5-14.
SMA 0.5
SMA 0.5 was Hammersmith to Latimer Road on the Hammersmith & City Line and Circle Line.