Complex sentence: In 2009 and 2010, passenger traffic soared with major openings of new phase 2 lines, with a three-fold increase in passenger traffic in 2010.
Split into simpler sentences: In 2009 and 2010, passenger traffic soared with major openings of new phase 2 lines. Since the opening of phase 2 lines there has been a three-fold increase in passenger traffic in 2010.