In urban settings, what is a common concern regarding sign functionality?

In urban settings, visibility of signs is a primary concern because these environments typically feature high traffic volumes, numerous distractions, and various competing visual stimuli. Effective signage must be easily seen and read by drivers, cyclists, and pedestrians to ensure safety and proper navigation through work zones. This includes considerations such as the height of the signs, placement relative to road and pedestrian traffic, and the clarity of the information presented.

While cost, material quality, and color schemes are also important factors in sign design and implementation, they are secondary to ensuring the visibility of the signs. If a sign is not visible, it cannot effectively communicate critical safety information, which is essential in high-stress urban environments where rapid decision-making is necessary.