Complex sentence: Twenty-four more are proposed as part of both the under construction Orange Line and expansions to both the Blue and Green Lines, which are all projected to open by 2013 and increase the mileage of the network to.
Split into simpler sentences: Twenty-four more stations are presently under construction as part of the Orange Line and expansions to both the Blue and Green Lines. All are projected to open by 2013 and increase the mileage of the network to.