Ansaldo Signalling and Transportation Systems (Ansaldo STS) S.p.A. has been a consistent global leader in the rail transport and signal-ling industry over the past century. Specializing in all aspects of railroad engineering, construction and management, Ansaldo STS is described as a turnkey railway construction, automation and signalling company which offers all related expertise and components from fittings, tunnelling and control systems to automation and signalling equipment. With offices worldwide, Ansaldo STS continues to make significant strides in the optimization of passenger and freight transit.