TY  - JOUR
PY  - 2021//
TI  - Pedestrian dynamics at the running of the bulls evidence an inaccessible region in the fundamental diagram
JO  - Proceedings of the National Academy of Sciences of the United States of America
A1  - Parisi, Daniel R.
A1  - Sartorio, Alan G.
A1  - Colonnello, Joaquín R.
A1  - Garcimartín, Angel
A1  - Pugnaloni, Luis A.
A1  - Zuriguel, Iker
SP  - e2107827118
EP  - e2107827118
VL  - 118
IS  - 50
N2  - We characterize the dynamics of runners in the famous "Running of the Bulls" Festival by computing the individual and global velocities and densities, as well as the crowd pressure. In contrast with all previously studied pedestrian systems, we unveil a unique regime in which speed increases with density that can be understood in terms of a time-dependent desired velocity of the runners. Also, we discover the existence of an inaccessible region in the speed-density state diagram that is explained by falls of runners. With all these ingredients, we propose a generalization of the pedestrian fundamental diagram for a scenario in which people with different desired speeds coexist.<p />  <p>Language: en</p>
LA  - en
SN  - 0027-8424
UR  - http://dx.doi.org/10.1073/pnas.2107827118
ID  - ref1
ER  -