There have, of course, been traffic lights at the junction of Western Road & Holland Road for many years. When traffic was much lighter, traffic signals were controlled by pneumatic pads across the carriage way. As traffic increased these were replaced with pre-programmed controls which simply favoured different directions of traffic according to the time of day.
The proposed work is expected to cause some traffic disruptions. This suggests some road works are needed such as installation of inductive-loop traffic sensors in the carriageway. This will allow adaptive control systems responsive to real-time traffic conditions to be employed. They are also capable of prioritising buses movements.