We cannot see the TIME SAVING ADVANTAGE definitely here.
Its a very important junction and many get their connecting trains here.
For many coming from MAS/SBC use this BZA for connecting trains.
DVD by passing is altogether another epic not worth discussing !!
Again,...
more... this BY PASS line is used by goods wagons( trains to BZA stn take the bridge route and by passing line passes below the main line) it would again hamper the movement of wagons. It will definitely result in the reduction of income. It has been proved in the DVD by passing case. There is a power plant neat BZA(Nandigama I guess) which needs coal everyday. This line is usually used for this purpose.