Tennessee Permit Practice Test

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What is the main purpose of a road sign such as 'Road Work Ahead'?

To indicate a speed limit change
To inform of nearby attractions
To warn drivers of upcoming work zones
To provide directions to detours

The correct answer is: To warn drivers of upcoming work zones

The primary purpose of a sign like 'Road Work Ahead' is to warn drivers about upcoming work zones. This type of sign is crucial for maintaining safety on the road, as it alerts drivers to the fact that they may need to reduce speed, remain vigilant, or follow specific detours or traffic patterns due to construction or maintenance activities. By effectively communicating this important information, the sign helps prevent accidents and ensures that drivers are prepared for potential delays or changes in the road conditions ahead. The other options, while they serve their own purposes, do not align with the function of the 'Road Work Ahead' sign. Speed limit changes relate to the regulation of how fast vehicles may travel in a particular area, information on nearby attractions does not pertain to work zones at all, and detour signs specifically indicate alternative routes during road closures or constructions, rather than simply warning of their presence.