The Spanish turn or detour can be found on highways
 It is intended for turning around and returning on the road. Stopping or turning on the highway is directly prohibited
 You must use the Spanish transfer or roll, and I will explain it here and how to deal with it.

The plate that means there is a Spanish shunt/roll

If you want to turn around and return, when you see the sign, you must give a dim to the right
 To enter the detour field or the detour path designated for that purpose.
 
 After the sign, about 150 meters, there is a detour

Picture of the shunt entrance

You will enter from point No. 1 and exit from point No. 2 as shown in the picture

Before leaving the transfer area and moving to the other party, you must stop at the STOP sign
 And wait until the road is clear of any vehicles coming from the right in the other field and from the left in the field you were in.

 Do not rush to set off before you are sure that the road is safe and clear and that there are no oncoming vehicles. When you set off after stopping at the mandatory stop sign, accelerate to reach the set road speed as soon as possible so as not to cause traffic obstruction or traffic accidents.