>>1753208Who do you evacuate from the train if forward car is on fire? You go backwards. With loop tunnel you drive backwards.
Now imagine fun of 1000 people packed like sardines in the can trying to squeeze through single back door of the train while been roasted by fire. How much time do you think 1000 people in panic need to dquueze throgh single door? Imagine the stampede! In Baku 300 hundreds people where literally stomped to death trying to escape. Noice! And then they need to outrun smoke in dark tunnel, running over leg braking sleepers, electrocuted by third rail.
Compare this to just driving backwards.
