Thus the people braking are afraid of 'running the red' whilst the normal flow of traffic is disrupted. It is this attempt to change behaviour that is causing all the accidents. Longer yellow lights cure the anxiety of braking early to avoid the fine, yet municipalities have been evidenced to shorten the duration of yellow lights. Why? Because it generates more revenue for them and the camera operator company.
Just follow the money and see where it goes. People are injured 'in the name of safety' when this is another side effect of the corrupt nanny state.