The Tai Tam Road (Dam Section) is part of the thoroughfare connecting Chai Wan and Stanley. Although it is only five metres wide, widening the road section is not possible as the dam is a declared monument. Hence, congestion problems occur when larger vehicles use the road section. To solve this problem, we have developed a Smart Traffic Control System by applying video analytic technology, which has been commissioned since August 2018, to collect real-time traffic information and adjust the duration of green signals.