The guang - shen line is being continuously upgraded with plans in the pipeline for electrification and a fourth track and also the introduction of very fast trains - over 200kmh , probably using tilting trains 港-深線現(xiàn)時(shí)正在不斷改善。有關(guān)方面正計(jì)劃將其電氣化、辟設(shè)第四條路軌,以及引進(jìn)特快火車(chē)時(shí)速達(dá)200公里以上,可能是前傾式火車(chē)。