Environment
Conditions around the city
- Weather
- Solar conditions
- Environmental monitoring
The living city
How MiaoMiao City Works
MiaoMiao City is more than a set of pages. Its systems hold state, follow rules and change with city time. The website is the final public layer of a world that keeps moving underneath.
What you see is only the surface.
One world, many systems
The city exists before the screen
Environment, living systems and infrastructure each keep their own part of the world. Public pages bring their current state together without becoming the source of truth themselves.
MiaoMiao City
Living world
A population that changes with time
- Births and deaths
- Relationships
- Families
Infrastructure
Systems that move and support the city
- Railway
- Energy
- Future logistics
Public presentationThe city you can see
Railway
From operating intent to a train you can see
Trains do not wander along a drawing. The railway separates operating intent, permission, physical motion, track occupancy and presentation so that each view reflects the same moving world.
01 · Operations and duty
Services, duties and dispatch intent describe what the railway is trying to operate.
02 · Interlocking and movement authority
Routes, switches and movement authority decide whether a movement may proceed safely.
03 · Physical motion
The train’s real position, speed and complete formation describe where it actually is.
04 · Canonical track occupancy
Track sections are clear or occupied according to the physical train that truly uses them.
05 · Presentation
The homepage, control centre, station diagrams and animation render those shared states for visitors.
This is not a one-way conveyor belt: physical occupancy feeds safety decisions and sectional release back into the interlocking. A page can observe a train, but it cannot grant that train permission to move.
S*(τ + 48h) = S*(τ)
The railway has a verified 48-hour periodic world model. When the underlying model is unchanged, the world can continue through its cycle without the public pages inventing new positions.
Weather
Environmental observations become city weather
External environmental data is received on the server and translated into the regional state used by the Cat Meteorological Office.
- 01
Environmental observations
External conditions arrive at private regional weather anchors.
- 02
Regional weather state
CMO turns them into weather for MiaoMiao City’s own districts.
- 03
Public conditions
Temperature, wind, cloud and precipitation reach maps and weather views.
The real-world anchor stays on the server. Public output contains MiaoMiao City districts and weather observations—not an external city or its location.
Weather data by Open-MeteoData & Licenses
Solar energy
Weather can become energy
The auxiliary solar system shows how one city system can become an input to another instead of living in an isolated dashboard.
- 01
Weather and irradiance
Sunlight, cloud and environmental conditions describe the available solar resource.
- 02
Generation model
The solar model converts that resource into an evolving power and energy state.
- 03
Energy output
Live and archived public views show the resulting city energy contribution.
The public explanation follows the real connection between environmental inputs and solar output, while model coefficients remain internal.
Weather and radiation data by Open-MeteoData & Licenses
Environmental monitoring
Energy facilities remain under observation
Each monitoring area starts from its own local natural-radiation background. Current simulated readings are then shaped by local weather, including atmospheric dispersion and precipitation-driven water response.
- 01
Local natural background
Each monitoring area begins with its own natural background radiation level.
- 02
Current weather
Wind speed and direction shape atmospheric dispersion; precipitation also shapes simulated gamma and water response.
- 03
Environmental response model
The model combines the local background with weather-driven facility, air and water responses.
- 04
Simulated monitoring readings
Public views present simulated gamma dose rate, air and water readings over city time.
Temperature may be shown as environmental context, but it is not a driver in the current gamma, air or water calculations. Exact background values, model coefficients and real-world locations remain internal.
Weather data by Open-MeteoData & Licenses
Life · births and deaths
Population is a process, not a timetable
Birth and death events are not written in advance as a fixed story. A stochastic process allows the population to change as city time passes.
- 01
Living population
The current population is the starting state for the next interval.
- 02
Poisson process
The model samples how many life events occur during that interval.
- 03
Birth and death events
Events change the city’s living population and history.
N(t + Δt) − N(t) ~ Poisson(λΔt)
In plain language: over a short interval, the number of events is drawn from a Poisson distribution whose expected scale grows with elapsed time.
The public model explains the process without publishing event rates, random seeds, individual-selection rules or private resident data.
Relationships · marriage
Families can evolve with the city
Marriage event planning also uses a Poisson-based stochastic model. Relationship state changes over time instead of being regenerated whenever a visitor opens a page.
- 01
Residents
The living world supplies the existing resident state.
- 02
Relationship events
Stochastic planning determines when marriage events may occur.
- 03
Marriage state
Completed events become enduring civil and family history.
- 04
Evolving families
Public views reflect the resulting relationship state.
Pairing criteria, rates, seeds, scoring and private resident information remain inside the relationship system.
Logistics
Coming later · Future system
Goods will eventually move through the same world
Logistics is a future system, not a live claim. It is intended to connect demand and goods to scheduling and real transport resources.
- 01
Demand
The city creates a need for goods.
- 02
Goods
Freight becomes a state that must be moved.
- 03
Scheduling
Plans assign time and transport capacity.
- 04
Physical movement
Future logistics will connect to real city transport resources.
No live freight data is presented here because the complete logistics system has not yet joined the public city.
Operating principles
The world comes first
A few simple ideas keep the city coherent as it grows.
- 01
State before screens
The city has state before a page decides how to display it.
- 02
Each system owns its truth
Pages do not recalculate or replace the authoritative state of another system.
- 03
Pages are windows
A public view observes the world; it is not the world itself.
- 04
Simplified, but internally coherent
The city may simplify reality without casually breaking its own logic.
- 05
Time changes the city
Life, relationships, weather, rail and energy keep evolving.
- 06
Continuity matters
Model changes should preserve historical facts and a continuous world whenever possible.
Important underlying models pass consistency and constraint checks before their results enter the public world.
See the current city