That's for speech problem lol. This is virtual problem :D
If we are talking about ATO operation with ATP, I guess the frequency still cannot beat the C-ATC system without ATP.
C-ATC (which is the same as ATC-Automatic Train Control) works like a centralised system, controling trains although they are operated manually. Speed commands appear beside the speedometer to remind the driver what speed he should drive at, and is calculated by a centralised system. When approaching a curve or any signals that contain warning (yellow(s) that calls for reduction of speed and red that calls for a full stop), the ATC system automatically reduces speed using the highest normal brake notch (brake power). Of course, the system takes into account the overshooting of a red signal, but will not utilise the emergency brakes.
The C-ATC system working without ATP (Automatic Train Protection, in case still in the blur) allows trains to be in direct visual contact, even allowing bypassing of a red signal without stopping to 0 (ATS systems require the sounding of an alarm and stopping completely before passing a red signal). This effectively speeds up operations. Trains can be coupled together without stopping for a long time (in systems that require this).
The ATC system was refined by the Japanese in the early 90s and features now in many railroads. Frequency can be down to 30 seconds or less during rush hour, and maintained (ie. not bunching). With this better technology sadly we have no systems containing this, and I do not assume that our local older batches (which was also built on Japanese systems but using the ATO/ATP method) can be upgraded to serve that.
That time I was at Khatib and the STATIS board indicated the train was arriving in 2 minutes, so I waited. I was about to sit down on a chair when the train just arrived. The next train was arriving in 1 minute.
Originally posted by SBS7322B:Well said. Eh, wherever stage go the thread will explode.
Figuratively.
Got one time at MRB, the RATIS showed 1 min before the train arrives. But the train didn't arrive for quite a long time, then it turned to 3 min. Omg?
Originally posted by SMRT BUSES LuvER:It was in yr 2000 when this incident tht i encountered abt it - there had 'train bunching' at CCK! Abt 4 trains were somehow 'joined' together! Although i was ONLY abt 5 yrs old, it was still fresh in my mind. I remembered clearly; there were 4 C151s (since i heard the familiar sound); 3 were adless & another train was with the 'Millenium 2000' full body ad. The 3 trains had passengers inside, except for the last 1 (it had absolutely no passengers inside). It was damn slow & long; fyi, the 4 trains took up alot of space (from the small tunnel (aft Bukit Gombak Stn) until the CCK Stn!). Btw, the trains were moving at a snail's pace. But it still remains a mystery for me - How & WHY did it happen like tht?!
P.S : The 4 trains were moving twrds the Marina Bay line. Hope you guys can reply!
You love bus service 307?