It's interesting. Singapore's underground stations from the 90s onwards had PSDs from the start but the above-ground and early stations only got them in the 2010s. But I suppose the concern was more suicide prevention and safety rather than major scandals of murder and deadly fires like what happened in South Korea so it moved slower
It's interesting. Singapore's underground stations from the 90s onwards had PSDs from the start but the above-ground and early stations only got them in the 2010s. But I suppose the concern was more suicide prevention and safety rather than major scandals of murder and deadly fires like what happened in South Korea so it moved slower