Section 4Road Tunnels and Control Areas
Traffic Statistics – Tate's Cairn Tunnel
| Year | Traffic (Vehicles) | |||
| Southbound | Northbound | Total | Daily Average | |
| 2010 | 9,300,431 | 9,917,140 | 19,217,571 | 52,651 |
| 2011 | 9,379,263 | 10,015,307 | 19,394,570 | 53,136 |
| 2012 | 9,874,885 | 10,536,007 | 20,410,892 | 55,767 |
| 2013 | 9,815,798 | 10,586,022 | 20,401,820 | 55,895 |
| 2014 | 9,997,368 | 10,823,577 | 20,820,945 | 57,044 |
| 2015 | 10,422,610 | 11,287,739 | 21,710,349 | 59,480 |
| 2016 | 10,411,550 | 11,258,886 | 21,670,436 | 59,209 |
| 2017 | 10,668,139 | 11,530,246 | 22,198,385 | 60,817 |
| 2018 | 10,805,659 | 11,690,453 | 22,496,112 | 61,633 |
| 2019 | 10,831,394 | 11,784,362 | 22,615,756 | 61,961 |
