--- title: "Cities: specialized fields | Nexus Observatory" description: "Specialized fields for cities and urban systems: Street flooding, Air quality and urban heat, Structural condition of public assets and Connectivity…" url: https://observatory.global/industries/cities/fields/ publisher: Nexus Observatory Inc. updated: 2026-11-02 --- [Nexus Observatory](https://observatory.global/) / [Cities](https://observatory.global/industries/cities/) / **Specialized fields** # Cities, field by field. A city is many services on the same streets. The air people breathe, the heat that builds between buildings, the traffic and the people moving through, the public buildings and their energy, the waste collected every day and the noise of the night each measure different things for different departments. Each field below has its own stack, radio, power and crew work, from the first order to the running operation. [Plan a deployment](https://observatory.global/contact/deployment/) [Use cases](https://observatory.global/industries/cities/use-cases/) [Open the explainer](https://observatory.global/industries/cities/explainer/) **01** Specialized fields ## Choose the field you work in. Each field page sets out the operating context and hazards, what must be measured and under which rules, the stack from base unit to network, the work from order to operation, the data products and the cited sources. [Specialized field Urban air qualityReference stations and dense sensor networks for particles and gases, with weather to trace sources, calibrated against each other, on cellular and LoRaWAN, for street-level maps people can trust.The full field →](https://observatory.global/industries/cities/air-quality/) [Specialized field Urban heat and treesStreet-level temperature and humidity across neighbourhoods, tree soil moisture and heat-health alerts, on LoRaWAN across the city, so cooling and watering go where people suffer most.The full field →](https://observatory.global/industries/cities/urban-heat/) [Specialized field Streets and mobilityCounts of people, bikes and vehicles, speeds, kerb use and junction safety by camera and radar processed at the edge, on private 5G and fibre, so streets are planned on evidence and privacy is kept.The full field →](https://observatory.global/industries/cities/street-mobility/) [Specialized field Public buildings and energyEnergy, heat and water meters, indoor air and comfort in schools, offices and pools, with weather for normalisation, on the buildings' own networks behind a security gateway.The full field →](https://observatory.global/industries/cities/public-buildings/) [Specialized field Waste and street servicesBin fill levels, collection routes, transfer station gas and weather, on LoRaWAN across the city, so crews empty what is full and the waste record follows from the work.The full field →](https://observatory.global/industries/cities/waste-services/) [Specialized field Noise and the night-time cityClass 1 noise monitoring at hot spots, event classification at the edge for nightlife, construction and traffic, with weather, on cellular, so complaints are answered with evidence and noise plans work.The full field →](https://observatory.global/industries/cities/noise/) **02** Solution bundles ## Start with one unit. Grow to a network. The same systems at every scale, on the open protocol, so nothing you buy is replaced as you grow. 1. **01** Base unit One station or node, specified for this industry: instruments, power, enclosure and backhaul. [Build a station →](https://observatory.global/studio/builder/) 2. **02** Site A surveyed, commissioned site with its timing, its links and the evidence file a buyer can audit. [Plan a site →](https://observatory.global/contact/deployment/) 3. **03** Fleet Many sites run as one service: one plan, one update path, one evidence trail, one service level. [Managed offers →](https://observatory.global/industries/cities/solutions/) 4. **04** Network Fleets that federate with partner grids through the open protocol, owner by owner. [The open protocol →](https://observatory.global/protocol/) ### Ready when you are. Plan a deployment, configure a station or talk to sales. Every request reaches the team that answers it. [Plan a deployment](https://observatory.global/contact/deployment/) [Station Builder](https://observatory.global/studio/builder/) [Talk to sales](https://observatory.global/contact/sales-enquiry/) ## Bring us the site. Survey, design, deployment and operation for cities. The form names who receives your details. [Talk to us](https://observatory.global/contact/) [Plan a deployment](https://observatory.global/contact/deployment/) [Home](https://observatory.global/industries/cities/) [Use cases](https://observatory.global/industries/cities/use-cases/) [Specialized fields](https://observatory.global/industries/cities/fields/) [Solutions](https://observatory.global/industries/cities/solutions/) [Platforms](https://observatory.global/industries/cities/platforms/) [Systems and technologies](https://observatory.global/industries/cities/systems/) [Frontier](https://observatory.global/industries/cities/frontier/) [Open](https://observatory.global/industries/cities/open/) [Community](https://observatory.global/industries/cities/community/) [Countries](https://observatory.global/industries/cities/countries/) [Resources](https://observatory.global/industries/cities/resources/) [Contact](https://observatory.global/industries/cities/contact/) [Nexus Observatory](https://observatory.global/)**Cities** . The city, measured block by block.[Talk to us](https://observatory.global/contact/) Cities - [Overview](https://observatory.global/industries/cities/) - [Explainer](https://observatory.global/industries/cities/explainer/) - [Specialized fields](https://observatory.global/industries/cities/fields/) - [Use cases](https://observatory.global/industries/cities/use-cases/) - [Solutions](https://observatory.global/industries/cities/solutions/) - [Platforms](https://observatory.global/industries/cities/platforms/) - [Resources](https://observatory.global/industries/cities/resources/) - [Contact](https://observatory.global/industries/cities/contact/) Platforms - [Observatory Protocol](https://observatory.global/protocol/) - [Protocol & Grid](https://observatory.global/grid-services/) - [Software](https://observatory.global/software/) - [Hardware & power](https://observatory.global/hardware/) - [Sensors & instruments](https://observatory.global/sensors/) - [Connectivity](https://observatory.global/connectivity/) - 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