Temporary signFrance
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133. Temporary sign
A temporary sign is a traffic sign installed for a limited period to regulate, warn or guide road users because of temporary conditions. Temporary signs are commonly used for roadworks, accidents, events, diversions, lane closures or other situations where the normal traffic arrangement has changed.
Drivers must follow temporary signs and the traffic arrangement currently in force. Signs that are no longer relevant should normally be removed, covered or otherwise made ineffective so that road users are not given conflicting instructions.
Wikimedia.org • Marc Mongenet • CC BY-SA
What is a temporary traffic sign?
A temporary traffic sign is a sign installed for a limited period to regulate, warn or direct traffic because of temporary road conditions.
Where are temporary signs commonly used?
They are commonly used at roadworks, accidents, temporary closures, diversions and special events.
What happens when a temporary sign is no longer needed?
It should normally be removed, covered or otherwise made ineffective so that it does not confuse road users or conflict with the normal traffic arrangement.

Traffic rules
France