年份

交通量 ( 輛次 )

南行

北行

雙程合計

平均每日

1998

11,166,875

9,940,462

21,107,337

57,828

1999

10,894,280

9,786,045

20,680,325

56,658

2000

11,066,886

10,094,697

21,161,583

57,819

2001

11,133,042

10,240,405

21,373,447

58,557

2002

11,048,529

10,230,842

21,279,371

58,300

2003

10,662,268

9,961,076

20,623,344

56,502

2004

10,938,922

10,133,973

21,072,895

57,576

2005

10,992,229

10,120,226

21,112,455

57,842

2006

11,335,075

10,471,042

21,806,117

59,743

2007

11,700,954

10,716,956

22,417,910

61,419

2008

11,717,607

10,744,466

22,462,073

61,372