RSA ko hi thoda aur bhetar kar sakte hai. For instance kal 22410 departed 7 hours late while 12877/78 rake lies idle for one day at Ndls. Agar dono ka RSA hota to kal 12877 ka rake se 22410 chala jata and aaj 12878 aaj 22410 lekar jata. Besides better mps se Gaya ke beyond extension bhi possible hai.