U r nt d getting the point.. If doubling and other progress has been made.. What has been the effective change in the avg speed or travel time reduction or slack time reduction in trains running since ages... Take 12163 for an example.. Wht wonders have been done to this train.. Bail gaadi bana di hai.. Inspite of getting e loco from gtl (300kms ahead of renigunta where loco change used to happen), did the travel time reduce? Did mps increase, toh net faayda hua kya? Diesel bacha, shaayadЁЯШВ