Coincidentally today I was daydreaming about such a system being built alongside the metro rail corridors of my city. Doesn't have to be pneumatic if built toda

Coincidentally today I was daydreaming about such a system being built alongside the metro rail corridors of my city. Doesn't have to be pneumatic if built today, but such an automated system would certainly help move packages at an unimaginable speed within a congested city.