Examples
Examples
Try the starting example
- Vehicle speed (km/hour)
- 80
- Curve radius (m)
- 300
- User-supplied lateral friction coefficient
- 0.12
- Equilibrium superelevation fraction
- 0.047855
- Equilibrium superelevation (%)
- 4.785452
Try another scenario
- Vehicle speed (km/hour)
- 81
- Curve radius (m)
- 300
- User-supplied lateral friction coefficient
- 0.12
- Equilibrium superelevation fraction
- 0.052077
- Equilibrium superelevation (%)
- 5.207711
Calculation method
Calculation method
Equilibrium superelevation fraction
Small-angle equilibrium e+f=v²/(gR); negative output indicates friction alone exceeds modeled requirement.
Equilibrium superelevation (%)
Small-angle equilibrium e+f=v²/(gR); negative output indicates friction alone exceeds modeled requirement.
Symbols and units
- a
- Vehicle speed (km/hour)
- b
- Curve radius (m)
- c
- User-supplied lateral friction coefficient
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; Small-angle equilibrium e+f=v²/(gR); negative output indicates friction alone exceeds modeled requirement. 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.