Perencanaan rute dan initial cost jalan tol trans sumatera serta identifikasi potensi dengan metode location quotient di bagian selatan pulau Sumatera Lampung Sumatera Selatan dan Bengkulu = Route and initial cost planning of trans sumatra toll road and identification of potential with location quotient method in southern Sumatera Lampung Sumatera Selatan and Bengkulu