The experimental run of R3: 4.5 years later

　　When R3,the high-concerned transit line in Ji’nan will be put into use has become the citizens’ most concerned question, as its first phrase construction started on June 20th .The construction schedule has already been made ,news from the construction site from the reporter .If everything goes smooth ,R3 will be put into an experimental run 4.5 years later on December 31st ,2020.