An unusual road sign, a bright yellow square with a black ring inside, continues to raise numerous questions and genuine confusion among a significant number of motorists traveling on Polish roads. According to a recent large-scale study, as many as 80 percent of drivers are unable to correctly explain the sign's intended purpose, eloquently demonstrating a significant lack of knowledge of the current traffic regulations, which are mandatory for all road users without exception.
The official name of this mysterious sign is T-6a, and its primary function is to designate a special temporary detour, organized by competent road services during necessary road repairs or in other unforeseen situations when traffic on the main route is blocked for objective reasons. This sign is intended to serve as an important reference point for all drivers, helping them navigate the proposed alternative route without unnecessary stress or loss of time until the long-awaited moment when traffic on the familiar main road is fully restored to its normal operating mode.
The statistical results of the study are truly alarming, as only one in five drivers surveyed was able to correctly identify the true meaning of this road sign, while all the remaining participants either demonstrated complete ignorance of the correct answer or offered their own erroneous interpretations, which are inaccurate. This situation is a legitimate concern for leading experts who professionally deal with issues of road safety and strive to minimize any potential risk of road accidents due to human error.
Sign T-6a belongs to a special category of temporary road signs, used by road services exclusively in conjunction with other similar signs to create a clear and logical detour for vehicles. A key distinguishing feature of all temporary road signs is their yellow background, which immediately draws attention and emphasizes the strictly temporary nature of these road markings, installed for a limited period of time. Drivers are strongly advised to closely monitor these special signs and strictly follow their instructions to ensure their own safety and the safety of other road users on the temporarily restricted section of road.

