When it is found that a fair or market, even a simple supply market, constitutes a serious disturbance to general traffic because it is held on a site that is wholly or partly within the rights-of-way of a main road, the representative of the State in the département shall give formal notice to the municipality to move the fair or market to another location within one year of notification of this formal notice, or to limit the location by a specific line so as to eliminate any encroachment on the rights-of-way of the trunk road.
After the expiry of the one-year period, any installation or occupation of land that is made on the occasion of this fair or market and does not take account of the decision of the representative of the State in the department is automatically prohibited.