General Tramways Act 1884

The promoters shall at all times keep the tramways in good repair and working order, and after the end of the time allowed by the special Act for constructing the tramways, the promoters shall provide and cause cars in sufficient numbers to travel along the tramways from the one terminal station to the other terminal station at least four times each way, between the hours of seven o'clock in the morning and eleven o'clock in the evening of every day except Sunday.