The operation of the line has been problematic since its opening. Complaints of noise pollution by residents along the line have led to severe restrictions. Barely six months after the line's opening, train frequency had to be reduced. On 1 November 1998, the number of cars operating on the line was reduced from six to three. Up until 2007, the operating hours were limited to between 7 am and 9 pm only. Trains currently still operate with a speed limit of due to flange on the line's sharp curves.