In the context of traffic incident management, what does "signage" refer to?

In the context of traffic incident management, "signage" specifically refers to physical markers that inform drivers about incidents. This includes a variety of visual aids such as warning signs, message boards, and variable message signs that communicate important information about road conditions, detours, accidents, or other hazards ahead. These signs play a crucial role in guiding drivers safely around incidents, helping to prevent further accidents, and ensuring a more efficient response to the situation. Effective signage is vital for maintaining safety on the roads and facilitating the smooth flow of traffic during incidents.

The other options, while relevant to traffic management, do not align with the definition of signage. Digital maps focus on visual representations of traffic data rather than on-site physical markers. Electronic alerts target mobile device users and convey information in a digital format instead of using physical signs. Temporary traffic lights, although used in traffic incident management, are not classified as signage since they serve a distinct function of controlling traffic flow rather than informing drivers about incidents.