Continuous mining with a drum miner and diesel cars involves a layout nearly identical to that for a conventional section. A single panel belt with a belt feeder is positioned in the middle of the panel, typically nine rooms wide. Room and pillar dimensions are essentially the same as those in conventional panels. Mining progresses by cycling through the faces from right to left across a section. Each face is advanced a predetermined distance that varies between panels and is determined by bolting and ventilation restrictions. car haulage has the advantage of increased flexibility in comparison to continuous haulage. This flexibility allows mining to adjust quickly to erratic variations in mineralization and the presence of salt horses. Mining can be more selective because mobi1ity is greater. In addition, waste can be cut and gobbed to maximize the ore feed grade