▁ 2 0 1 1 , ▁so ▁the ▁road ▁could ▁literally ▁have ▁a ▁" mel ody ". ▁The ▁second ▁segment ▁was ▁not ▁completed ▁until ▁ 2 0 1 8 . ▁Two ▁Japanese ▁folk ▁songs ▁can ▁be ▁heard , ▁one ▁in ▁each ▁direction , ▁when ▁these ▁short ▁segments ▁of ▁the ▁road ▁are ▁driven ▁over . ▁The ▁songs ▁are ▁created ▁by ▁gro ov es ▁in ▁the ▁road way ▁( rum ble ▁stri ps ) ▁arranged ▁to ▁form ▁mel od ies . ▁ ▁References ▁▁ 1 9 7 ▁ ▁Category : Ro ads ▁in ▁E h ime ▁Pref ect ure ▁Category : Ro ads ▁in ▁K ō chi ▁Pref ect ure ▁Category : Ro ads ▁in ▁ Ō ita ▁Pref ect ure ▁Category : Mus ical ▁roads ▁in ▁Japan <0x0A> </s> ▁A ▁translation ▁memory ▁( TM ) ▁is ▁a ▁database ▁that ▁stores ▁" seg ments ", ▁which ▁can ▁be ▁sentences , ▁paragraph s ▁or ▁sentence - like ▁units ▁( head ings , ▁titles ▁or ▁elements ▁in ▁a ▁list ) ▁that ▁have ▁previously ▁been ▁translated , ▁in ▁order ▁to ▁aid ▁human ▁transl ators . ▁The ▁translation ▁memory ▁stores ▁the ▁source ▁text ▁and ▁its ▁corresponding ▁translation ▁in ▁language ▁pairs ▁called ▁“ trans lation ▁units ”. ▁Ind ividual ▁words ▁are ▁handled ▁by ▁termin ology ▁bases ▁and ▁are ▁not ▁within ▁the ▁domain ▁of ▁T M . ▁ ▁Software ▁programs ▁that ▁use ▁translation ▁mem ories ▁are ▁sometimes ▁known ▁as ▁translation ▁memory ▁man agers ▁( T MM ) ▁or ▁translation ▁memory ▁systems ▁( TM ▁systems , ▁not ▁to ▁be ▁confused ▁with ▁a