THE '2M'

• Design Criteria:
  
  
  • Standardise to 3000 Volt DC (Direct Current) traction.
  • "New" design from 1M's in terms of traction power and train sets.


• Interesting Facts:
  
  
  • The "fast post office" service was provided by the 2M1 motorised trains, which served in this role until the late 80's. Longer train compilation became possible.
  • Station platform designs became "more" than just a "halt" for a train.
  • The basic "stagecoach" definition of passenger comfort was still prevalent.

THE '3M'

• Design Criteria:
  
  
  • Improvement on the traction power of the 2M's.
  • Innovations to improve passenger comfort.


• Interesting Facts:
  
  
  • During this period the World War II took place.

THE '4M'

• Design Criteria:
  
  
  • Public Transport for the "people".
  • Long train sets (8coach trains) started to appear.
  • Large volumes of passengers from "Home" to "Work".
  • "Train Dynamics" became a science in the scheduling of trains.


• Interesting Facts:
  
  
  • The visit by the British Royal Family boosted rail commuter transport.
  • A special train was compiled to transport the royal family. This led to special attention being given to so-called "first class comfort”, which would become a standard for later train releases.
  • Up to the 4M, all trains were primarily constructed of Meranti wood.