Skubic Jeffrey, Johnson Steven B, Salvino Chris, Vanhoy Steven, Hu Chengcheng
Department of Trauma, Banner Good Samaritan Medical Center, Phoenix, Arizona, USA.
University of Arizona, College of Medicine, Phoenix, Arizona, USA.
Ann Adv Automot Med. 2013;57:365-8.
We investigated the effects of speed cameras along a 26 mile segment in metropolitan Phoenix, Arizona. Motor vehicle collisions were retrospectively identified according to three time periods - before cameras were placed, while cameras were in place and after cameras were removed. A 14 mile segment in the same area without cameras was used for control purposes. Five cofounding variables were eliminated. In this study, the placement or removal of interstate highway speed cameras did not independently affect the incidence of motor vehicle collisions.
我们调查了亚利桑那州凤凰城大都市地区一段26英里长路段上的超速摄像头的影响。根据三个时间段回顾性地确定机动车碰撞事故——在安装摄像头之前、摄像头安装期间以及拆除摄像头之后。同一地区一段14英里长且没有摄像头的路段用作对照。排除了五个混杂变量。在本研究中，州际公路超速摄像头的安装或拆除并未独立影响机动车碰撞事故的发生率。
