年份

交通量 （輛次）

東行

西行

雙程合計

平均每日

2000

12,712,198

12,320,619

25,032,817

68,396

2001

13,437,667

12,914,953

26,352,620

72,199

2002

12,843,924

12,409,494

25,253,418

69,187

2003

12,114,650

11,774,040

23,888,690

65,448

2004

12,558,283

12,218,851

24,777,134

67,697

2005

12,501,549

12,232,548

24,734,097

67,765

2006

12,760,577

12,512,843

25,273,420

69,242

2007

13,362,973

13,091,192

26,454,165

72,477

2008

13,267,350

13,073,615

26,340,965

71,970

2009

13,338,117

13,101,911

26,440,028

72,438