9 station metro is run by
Ferrotramviaria. It opened in 2008. Ferrotramvia also runs a 70 km interurban line
on this same route, with the two lines sharing 4 km of underghround track. As
of 2009, 1,5 km of underground extensions are under construction.
This site mentions a new
railway station at the airport, which is likely part of
the subway which will run
from the airport to St.
Wikipedia page (Italian)
Rail in Bari today
IRA Railfans page