The book Stuck in Traffic ​ — Coping With Peak - Hour Traffic Congestion says: “A considerable degree of peak - hour congestion is almost sure to persist throughout the foreseeable future in all metropolitan areas already experiencing it. ”
Buku Stuck in Traffic ​ — Coping With Peak - Hour Traffic Congestion mengatakan, ” Kepadatan pada jam - jam sibuk diprakirakan hampir pasti akan terus ada di semua kawasan metropolitan yang sudah mengalaminya. ”