Which of the following types of beaconing signals does not exist?
Signage: Beacons and temporary signage
Explanation
**Beacon signals** are devices used to highlight roadworks and guide drivers on the direction they should follow, as well as to warn about possible obstacles. These signals can include directional panels, flags, cones, and lights of different colors.
- **Flat beacons** and **cylindrical beacons** are types of beacon signals that exist and are used to fulfill these functions. Flat beacons are usually panels that indicate directions or dangers, while cylindrical ones can be cones or similar devices that mark the path or delimit areas.
- **Circular beacons**, on the other hand, are not mentioned as a type of beacon signal in the provided texts. Although circular traffic lights for vehicles exist, these are not considered beacons. Therefore, circular beacons are not a recognized type of beacon signal.
In summary, circular beacons do not exist as a type of beacon signal, making this option incorrect in the context of beacon signals.
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