E underground trains were introduced.
Later on, the line crossed the Dnieper river in 1965 across newly constructed Metro and Rusanivskyi bridges and went east to the large residential areas being built on the left bank of the river. As the "Dnipro" station, "Hidropark", "Livoberezhna" and "Darnytsia" stations all were on-ground. Additionally, to resolve the question of a temporary depot, a permanent one, "Darnytsia" with the access to railway, namely, to Kiev-Dniprovskyi railway station, was built between "Livoberezhna" and "Darnytsia". Thanks to the depot, new trains could be easily transported immediately into the depot, which, having a connection with the metro line, could now easily host trains.

Besides, a few developments were made on the old stations. Khreshchatyk station was opened with one exit only, while the second way outto provide more ventilation, he opened windows in the kitchen-dining room area and turned on ductal fans and a large air conditioner. Although he checked the area to make sure there were no flames, he did not think of extinguishing the pilot light in the gas stove.
Mr. Burch followed the instructions on the label and began applying a first coat of adhesive to the kitchen floor. Approximately fifteen to twenty minutes later, he had just covered the edge of the floor by the stove when he heard, subliminally, a noisea "whoosh." He had a sense of time being elongated, felt searing heat and saw the skin peeling from his body. Mrs. Burch, hearing her husband scream, ran into the kitchen to find the room on fire. Mr. Burch