年份

交通量 ( 輛次 )

南行

北行

雙程合計

平均每日

1998

11,492,923

12,227,753

23,720,676

64,988

1999

11,319,975

12,112,627

23,432,602

64,199

2000

11,171,193

11,986,211

23,157,404

63,272

2001

11,287,397

12,079,799

23,367,196

64,020

2002

11,047,518

11,851,262

22,898,780

62,736

2003

10,772,350

11,464,759

22,237,109

60,924

2004

10,842,069

11,508,288

22,350,357

61,067

2005

10,180,063

10,736,088

20,916,151

57,305

2006

9,784,153

10,340,727

20,124,880

55,137

2007

9,962,944

10,630,803

20,593,747

56,421

2008

9,595,787

10,277,795

19,873,582

54,299