Bullona quadruplication
The station at Bullona had gone into service when the line was modernised during the switch to electric traction, at the end of the 1920s. As was the case then, work on this section of line presented a particularly complicated situation, as operation continued as normal; just as the more distant past can be considered history, so too can more recent events, in colour, be considered history, as they saw the closure of the system in the heart of old Milan.
Gallery
Series of images of work to quadruple the line under Bullona station, now decommissioned and replaced by that at nearby Domodossola, in 2006. This is in February 
Progression of the work in March 
An aerial view of the area, a few months earlier 
Work on the underground line, seen from the entrance side of the passenger building 
Old and new tracks, in the direction of Cadorna, before the overpass in Via Abbondio Sangiorgio