This project is a adaptation of the Python implementation of the Extended Social Force Model [2] for Grasshopper. It extends the vanilla social force model [1] to simulate the walking behaviour of pedestrians with social group interactions.
The pedestrian states and other simulated entities are represented by NumPy arrays. Performance-critical implementations of forces use Numba for significant speed-ups.
[1] Helbing, D., & Molnár, P. (1995). Social force model for pedestrian dynamics. Physical Review E, 51(5), 4282–4286. https://doi.org/10.1103/PhysRevE.51.4282
[2] Moussaïd, M., Perozo, N., Garnier, S., Helbing, D., & Theraulaz, G. (2010). The walking behaviour of pedestrian social groups and its impact on crowd dynamics. PLoS ONE, 5(4), 1–7. https://doi.org/10.1371/journal.pone.0010047
[3] Sven Kreiss's original Social Force implementation on GitHub