大老山隧道 - 交通量 年份 交通量 (輛次) 南行 北行 雙程合計 平均每日 1997 - - 25,819,035 70,737 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