box junction
noun [ C ] UK uk/ˈbɒks ˌdʒʌŋk.ʃən/ us/ˈbɑːks ˌdʒʌŋk.ʃən/ (US box)
（前方通畅时方可驶入的）路口方形黄线区域
a place where two roads cross, marked with a square of yellow lines painted in the centre, that you can drive over only when the road in front is clear