What information does a purple traffic sign convey?

A purple traffic sign specifically conveys information related to lanes utilized for electronic toll collection. These signs are designed to inform drivers about the availability of lanes designated for e-toll systems, indicating that tolls can be paid electronically, usually via transponders or accounts without the need for cash. This helps streamline the toll collection process, reduce waiting times, and improve traffic flow at toll booths.

Regarding the other options, while regulation signs typically include colors like red or blue to convey rules of the road, temporary traffic control signs often use orange to signal short-term changes in traffic patterns. Signs indicating stop or prohibition generally fall under the category of regulatory signs and typically feature red or white backgrounds, identifying specific actions that drivers must take.