What is an important consideration when placing traffic signals?

An important consideration when placing traffic signals is sight distance and road curvature. Ensuring adequate sight distance allows drivers to see traffic signals well in advance, which is crucial for safe and effective traffic control. If signals are positioned where they cannot be easily seen due to road curvature or obstructions, it can lead to confusion and increase the risk of accidents. Clear visibility is essential for drivers to react appropriately to the signals, ensuring smoother traffic flow and enhanced safety for all road users.

In contrast, while the cost of installation, brand of signal equipment, and local government regulations can impact the decision-making process, they do not directly affect the operational effectiveness of the traffic signals themselves. Safety and visibility factors are paramount in the design and placement process to ensure that signals serve their purpose effectively.