I differ
93004 07:15 DRD CCG Emu is overtaken by 12954 AK Rajdhani at Vasai Road
All depends on section controllers.
Also who says Suburban stations don't have loops? Leave aside Borivali, andheri stns, just visit Goregaon station as an example
Which...
more... have loop line and is being used also for looping purpose.
Almost all the station on Virar-Dahanu section,except Saphale, vaitarna and Umroli have loop lines.
All depends on zonal railways and their type of working.