wpcoe wrote:I read on that other Thailand forum that with the current train system on the Sukhumvit Line, it is not possible to insert a fourth (or fifth) car in the train. The only option is to put two three-car trains together for a six-car extravaganza. So, either a three-car train or a six-car train, nothing in between.
I did notice the new four-car trains on the Silom Line and wondered why they chose *that* line for the four-car trains, rather than the longer, more crowded Sukhumvit Line. But, I'm sure there's a good reason.
If you notice, ALL stations on the BTS have platforms capable of taking 6 car trains - i.e. long enough. They were built for that purpose.
'Double' train sets (i.e. 6 cars) have been used on trials.
Like any modern metro system, all trainsets are designed to be expandable as the ridership grows. BTS was designed also in this manner.
Inserting an extra 3 cars is easy, providing that the motor configuration and control systems are modified accordingling - and herein lies the (Political) problem.
Since the providers of the original fleet are not the providers of the current control system and since this is Thailand - it may take some time.
The theory was that the spare cars left over from the Silom Line demobilisation, would be more than enough to expand the Sukhumvit Line fleet and the new 4 car sets would be capable for the demand expected on the Silom Line.