>>1038832Koike has an imagination. Although I imagine JR wouldn't budge since they're pretty happy as it is
>>1038361Issue with that is the need for longer signal blocks or at the very least, larger gaps between trains. It's why the commuter lines in Tokyo with 15 car trains generally max out at 20 per hour, whereas the 10 car ones do up to 30 (and 34 in the case of the Marunouchi with its 6 car trains)