My LEGO City Subway Gets a HUGE Upgrade!

In August, I built a subway under my LEGO shelf city, and I loved it! After reading many comments with tons of helpful suggestions, I've made a handful of changes and upgrades that have really brought this subway to the next level! These upgrades include elevators, automation, and fully realized subway platforms. I also give a tutorial on how to use a color sensor for your own LEGO trains. Love these videos? Please consider joining my membership program: The Brick Guild! Click this link for more details!    / @kelton-davis   0:00 Introduction 0:18 Expanding the city 1:23 Elevators 2:49 Platforms 3:43 Lighting 4:08 Color Sensor Tutorial 8:26 Grand tour