年份

交通量 ( 輛次 )

南行

北行

雙程合計

平均每日

1998

4,674,958

4,730,482

9,405,440

25,768

1999

6,749,447

6,850,583

13,600,030

37,260

2000

6,863,310

6,988,794

13,852,104

37,847

2001

6,898,095

6,979,772

13,877,867

38,022

2002

7,478,977

7,551,051

15,030,028

41,178

2003

7,355,991

7,443,168

14,799,159

40,546

2004

8,736,273

8,817,023

17,553,296

47,960

2005

9,401,807

9,391,694

18,793,501

51,489

2006

9,878,953

9,904,138

19,783,091

54,200

2007

10,359,200

10,425,178

20,784,378

56,944

2008

10,292,507

10,358,524

20,651,031

56,424