年份

交通量 ( 輛次 )

南行

北行

雙程合計

平均每日

1998

-

-

43,803,759

120,010

1999

-

-

42,997,517

117,801

2000

22,387,934

21,660,100

44,048,034

120,350

2001

22,394,542

21,567,526

43,962,068

120,444

2002

22,287,405

21,515,942

43,803,347

120,009

2003

22,090,853

21,621,149

43,712,002

119,759

2004

22,439,544

22,092,329

44,531,873

121,672

2005

22,655,628

22,186,246

44,841,874

122,854

2006

22,829,118

22,382,114

45,211,232

123,866

2007

22,677,743

22,190,340

44,868,083

122,926

2008

22,232,555

22,143,283

44,375,838

121,245