Which lit light on a traffic light prohibits drivers from proceeding without any exception?

Question

DentroTest · Accepted Answer

According to the General Traffic Regulations, a non-flashing red light categorically prohibits proceeding. Drivers are required to stop their vehicle before the traffic light or the nearest stop line, without going past it. The steady yellow light also requires stopping, but it allows the exception of proceeding if the vehicle is so close that it cannot brake with sufficient safety; therefore, the prohibition on proceeding without exception corresponds to the red light. For its part, the flashing yellow light does not generally require stopping, but rather exercising extreme caution and yielding to vehicles that are approaching.

Which lit light on a traffic light prohibits drivers from proceeding without any exception?

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