城門隧道 - 交通量
年份
交通量 (輛次)
南行
北行
雙程合計
平均每日
1996
9,476,767
9,602,502
19,079,269
52,129
1997
9,963,876
10,123,429
20,087,305
55,034
1998
9,752,478
9,841,764
19,594,242
53,683
1999
9,705,336
9,762,548
19,467,884
53,337
2000
9,903,248
9,933,616
19,836,864
54,199
2001
9,840,354
9,794,316
19,634,670
53,794
2002
9,972,093
9,941,663
19,913,756
54,558
2003
9,652,610
9,688,391
19,341,001
52,989
2004
9,724,351
9,792,780
19,517,131
53,325
2005
9,665,724
9,730,936
19,396,660
53,142