CTA's plan calls for its Red Line L train to be extended 5.6 miles into Chicago's Far South Side with four new stations and a storage and maintenance facility.

Binding offers to operate and maintain some 800 km due in April.

Donors have pledged more than €1 billion to rebuild the cathedral despite no official plan or cost estimates in place.

Combined programs will create 300 km of new rail lines and phased tunnels by 2030.