In driving terminology, what is a “stop gap”?

A “stop gap” refers to a temporary measure designed to address an immediate need or issue, particularly in the context of preventing accidents or improving safety. In driving terminology, it indicates actions or solutions that might not be permanent but are necessary to mitigate risks while a more permanent solution is being developed or implemented.

This temporary measure could involve adding temporary signage, making quick changes to traffic patterns, or implementing short-term traffic control measures to ensure driver and pedestrian safety. It is crucial in situations where a sudden hazard has emerged, allowing for a responsive approach to maintain safety until further evaluation and more lasting interventions can take place.

The other options refer to concepts that do not match the definition of a "stop gap." For instance, a defined legal requirement indicates a structured regulation, a permanent road sign suggests a lasting feature on the road, and a method to increase traffic speed does not align with the safety-focused nature of a stop gap.