Signaling of obstacles and hazards is one of the topics in the General rules block of the Spanish DGT theory. Defines who the traffic rules apply to and where, the basic definitions and the principles behind the whole theory. Understanding this section well helps you answer the theory-exam questions on this topic with confidence.

In simple terms, this point of the DGT theory establishes that all actions to be carried out by mechanical assistance, health services or any other type of intervention must be governed by the principles of using the appropriate and strictly necessary resources in each case. The autonomous body, the Central Traffic Headquarters or, where appropriate, the autonomous or local authority responsible for traffic regulation…

The exam often asks where and to whom these rules apply; read the options carefully, as they frequently change a single word.