Q390: Is it illegal to reverse a car onto a main road from a minor road?
It is not illegal to reverse into a main road but it is not advisable. This is for safety reasons. The main road is likely to be very busy and there will be an increased chance of a collision due to the presence of more cars on the road. If an accident occurred due to you reversing onto a main road from a minor road then there may be the possibility of you being prosecuted for driving without due care and attention.