iIn Semarang-Solo, tunnel building is necessary
Minister of Public Works and Public Housing (PUPR) of Indonesia, Basuki Hadimuljono say long tunnels were made necessary in Semarang-Solo, to protect the environment and to keep the landscape beautiful. https://www.cnbcindonesia.com/news/20200628133957-4-168575/top-jokowi-tol-sumatera-aceh-sig...Tags: Trans-Sumatra, transsumatra, sumatra
cover tunnel photo by: Matt Brown from London, England / CC BY
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