Unfortunately, most of the vital complementary railway equipment needed for track maintenance and the safe and efficient operation of the railway system, such as track tamping machines and signal and communications equipment, has remained on hold.
不幸的是，涉及铁轨保养以及铁路系统安全有效运作所需的重要的辅助性铁路设备的合同大多仍被搁置，如铺轨机及信号和通讯设备。