- The solver for the ODE. Only *Euler*. No other options.
-`<stepsize>0.001</stepsize>`:
- The time step for the solver. This should be choosed with care. For force-based model it is recommended to take a value between $`10^{-2} `$ and $`10^{-3}`$ s.
- The time step for the solver. This should be choosed with care. For force-based model it is recommended to take a value between $`10^{-2} `$ and $`10^{-3}`$ s.
For first-order models, a value of 0.05 s should be OK.
A larger time step leads to faster simulations, however it is too risky and can lead to
numerical instability, collisions and overlapping among pedestrians.
