PATH weekend service suspensions to the World Trade Center and Exchange Place stations have ended; normal service will operate on Saturday, December 20, and in the near future. However, PATH said that addititional closures will be necessary in the second half of 2015. PATH also advised that closures may be necessary on its uptown line to 33 Street, also in the second half of 2015, due to a cable fire earlier this year. The recent closures on the downtown line to World Trade Center were made necessary by damage from flooding due to Hurricane Sandy in 2012, as well as installation of Postitive Train Control technology required by Federal regulations. PATH said that one of the two trans-Hudson lines will remain open at all times, and that alternative transportation options are under consideration for riders inconvenienced by the 2015 closures.