Since then, 280 kilometres of highway network has been built in the Tokyo metropolitan area; 30 kilometres more of highway are either constructed or planned, making the Metropolitan Expressway a vast network of urban expressways in the Tokyo region.
Sejak itu, 280 kilometer jaringan jalan tol telah dibangun di area metropolitan Tokyo; 30 kilometer lagi sedang entah dibangun atau direncanakan, membuat Metropolitan Expressway sebuah jaringan luas jalan tol dalam kota di wilayah Tokyo.