Title: Subway Flow Map
Prompt: A live transit diagram with four glowing lines, moving trains, and rush-hour physics. Add line toggles, frequency and speed controls, station departures, and disruption drills. It should feel like a midnight control room — signal colors on near-black rails.
Design: A control-room split joins a gridded canvas map with station nodes and pulsing rush trains to a service rail of line cards, frequency sliders, hold/release, departures, and station list. Line pills float over the map; clicking trains or stations reports crowding and headways.
Visual techniques:
- Canvas transit lines with moving train dots and rush halos
- Gridded control-room backdrop with dashed disruption styling
- Floating line pills and glassy readout card
- Pulsing live-network indicator
- Signal red, gold, green, and blue on near-black
Interaction model: Users toggle lines, trigger rush hour and disruptions, tune frequency and speed, hold and release all trains, click trains and stations for departures, and watch headways, crowding, and readout narratives update live.