Roblox Driverless Metro System

I want to commission a complete, driver-free metro network on Roblox that mirrors the Nürnberg U-Bahn style of automation. From the moment a player joins, the trains should glide between underground and overground stations on their own timetable, handling acceleration, braking, doors, and safety logic without any manual input.

Core gameplay needs
• Players can sit comfortably in designated seats or wander the carriages while the train is in motion.
• A passenger UI shows the next stop, plays arrival and departure announcements, and is able to trigger emergency notifications when required.
• Stations include accurate platform stopping points, signals, and platform screen doors where appropriate, all tied into the same safety system so nothing conflicts in multiplayer sessions on PC or mobile.

Technical must-haves
• Smooth, modern Lua scripting—zero free models, everything written from scratch, commented, and organised so I can expand the route later.
• Optimised for lag-free play with several trains running simultaneously in the same server.
• Place file delivered as .rbxl or .rbxlx and ready to publish.

To help me gauge fit, please share links or videos of previous custom Roblox systems you have scripted—especially if they involve automation, vehicles, or complex UI.

I will consider the job complete only when the place loads, trains cycle through multiple mixed stations autonomously, all specified UI elements fire correctly, and users can join together without desync or performance dips.