Examples
Examples
Try the starting example
- Approach rows [left,through,right] vehicle counts
- [[20,100,30],[40,80,20],[10,90,25],[30,110,15]]
- Observation duration (minutes)
- 60
- Approach totals (JSON)
- [150,140,125,155]
- Movement totals [left,through,right] JSON
- [100,380,90]
- Hourly equivalent intersection volume (vehicles/hour)
- 570
Try another scenario
- Approach rows [left,through,right] vehicle counts
- [[21,100,30],[40,80,20],[10,90,25],[30,110,15]]
- Observation duration (minutes)
- 60
- Approach totals (JSON)
- [151,140,125,155]
- Movement totals [left,through,right] JSON
- [101,380,90]
- Hourly equivalent intersection volume (vehicles/hour)
- 571
Calculation method
Calculation method
Approach totals (JSON)
Sum approach-turn matrix and scale observed intersection count by 60/observation minutes.
Movement totals [left,through,right] JSON
Sum approach-turn matrix and scale observed intersection count by 60/observation minutes.
Hourly equivalent intersection volume (vehicles/hour)
Sum approach-turn matrix and scale observed intersection count by 60/observation minutes.
Symbols and units
- a
- Approach rows [left,through,right] vehicle counts
- b
- Observation duration (minutes)
Use the units shown. A list keeps the order in which you enter its values. The symbol ^ means “raised to the power of”.
Assumptions & limits
Assumptions & limits
- User-supplied measurements and assumptions; Sum approach-turn matrix and scale observed intersection count by 60/observation minutes. Supported limits: Finite numeric values bounded to 1e9 magnitude; lists and tables contain 1–100 records unless a stricter bound is stated. Inputs use the units shown. Lists explicitly paired by a method must have matching lengths; independent polynomial coefficient vectors may differ. Respect stated physical, interpolation, policy and computational domain limits.
Are these inputs private?
These calculations run in your browser. A shared link contains the values you choose to share. Only questions submitted to the separate AI finder are sent to OpenAI.
Further reading
Background reading; this does not imply endorsement or independent review of SumFizz.