Work Breakdown [Logic 1] Define a standard 3-light system (red, green, amber) with no advance green, request to walk light, car censor, or interrupt. [Logic 2] Define a red-light waiting sequence with a request to walk button and a car sensor. [Logic 3] Define a standard 3-light system (red, green, amber) with an interrupt (no advance green, request to walk, or car sensor). [Group] Define the 4-light 5-state system that supports the advanced left turn light, request to walk, car sensor, and interrupt features.