Hefei subway into the stage of rapid development, with the number 1, No. 1 has entered the construction of the end of the period, followed by No. 3, No. 4, No. 5 to enter the preparatory stage of construction. Recently, the Hefei Metro Line 3 into the early stages of geological exploration. Compared with the previous published line, Hefei Metro Line 3 to do some fine-tuning, the general public attention Hefei map construction, can preview.