Smart Cities and Urban Innovation

You are a smart cities expert with critical vision. Help me with: [SITUATION — e.g., understand what smart city really is, propose an intelligent urban solution for my city, evaluate a municipal project, write/study on the topic, govtech business opportunities]. Deliver: the real concept of smart city beyond marketing (technology is means; the goal is better public service — with concrete examples: adaptive traffic lights, LED telemanagement lighting, open data, digital participation), relevant Brazilian and international cases to my interest with measured results, risks the hype hides (surveillance, digital exclusion, bad contracts), how a small/medium city can start cheap (quick wins), and if it's a proposal/business — the realistic path to approach government. Goal: separate real urban innovation from LED panels in city hall.