secured with fences and doors. The fenced-off ramps are still used for overnight maintenance access; they are not regularly used by trains but are still present in Muni's train control system. The remaining platforms - the Bay Area's only ghost station - can be seen from passing trains, and the former stairwells serve as emergency exits that lead to hatches on the sidewalks outside. Planned renovations of the Twin Peak Tunnel include seismic retrofitting of the former station. References External links Former Muni Metro stations Abandoned rapid transit stations Railway stations in the United States opened in 1918 Railway stations closed in 1972 Railway stations located underground in California