The most important and gamechanger project of IR since independence is the 6 Dedicated freight corridors (Total 10000 RKms) planned for IR network, mostly parallel to the famed golden quadrilateral + diagonals. Construction of Mumbai-Delhi, LDH-Delhi-Sonnagar-HWH is progressing very fast.
DFCs are a master stroke and shall decongest the most saturated tracks of IR network and increase the avg speed of freight trains from 25kmph to as high as 70kmph, and of passenger trains on these routes from 50kmph to about 75-80kmph!