Likewise, those wanting to get off the moving train will have to board the designated car on top of the train as it will be detached at the next station. Peng Yu-lun says that a train like the domestic Kaohsiung MRT has a maximum speed of 85 km/h, but due to stops, it achieves an average speed of just 35 km/h. If the train followed his concept, it would be able to maintain an average speed of 85 km/h throuout the entire trip thus saving time and energy.
While the idea sounds great in theory, it does have its flaws. Leaving safety factors aside, the system is restrictive in the sense that some stations are more popular than others – what happens if more people than the designated car can fit want to get off at a particular station, can you imagine the commotion!