One track is only used when passenger demand is high.
It was discontinued in 1956 due to declining passenger demand.
But it did not survive the national decline in passenger demand and its last run was on May 15, 1968.
Incidentally, route K4 was later extended to the hospital again after passenger demand.
The two new stations caused larger passenger demand, compelling an increase in the number of trains from four to six.
But officials said they are certain that passenger demand will be sufficient to resume the service permanently in the spring.
December was the first month that passenger demand was back at the levels before September 2001.
Then the air attacks on Afghanistan began and passenger demand dropped.
According to the report, passenger demand would be great enough to produce a farebox revenue of over £2 million per year.
However, this plan has been postponed amid low passenger demand.