Related Experiment Video
Updated: Jul 6, 2026

Impact Mitigation in Modern Football Helmets: Advances and Limitations of Position-Specific Designs
Published on: January 13, 2026
[Impact-absorbing and containment barriers: reduction in accident mortality]
Carlos Arreola-Rissa1, Jesús Santos-Guzmán, Adol Esquivel-Guzmán
1Escuela de Medicina, Instituto Tecnológico y de Estudios Superiores de Monterrey, Nuevo León, México. car@itesm.mx
Objective:
To determine the effect of the installation of an impact absorption and containment device (Spanish abbreviation, BAFI) on the reduction of traffic accident fatalities at edge crossings in the city of Monterrey, Mexico.
Materials And Methods:
Information about accidents was obtained from January 1,2000 to December 31,2005 from intersections with and without BAFI.
Results:
During the study period, 142 accidents were registered in edge intersections, with 59 deaths in intersections without BAFIs and five in those where the devices were installed.
Conclusions:
The BAFI devices represent a quick and low-cost step for reducing mortality and serious injury due to accidents in edge crossings.
Related Concept Videos
Types of Collisions - II
Impulse
Additionally, it can be shown that the total...
Reclosers and Fuses
A comprehensive protection scheme for radial distribution...
Impact
When particles with different initial velocities collide, they induce deformation by applying equal and opposite impulses. At the point of maximum deformation, the particles move together with...
Design Example: Analyzing Capacity Contours for Flood Risk Assessment
Types of Impact
The coefficient of restitution is a metric for understanding the dynamics of impacts. It quantifies the ratio of relative velocity...

