With high traffic volumes there is more of an accident risk every time you take to the road. (carinsurancequote.net)
But with a high population comes high traffic volumes and a higher risk of being involved in an accident. (carinsurancequote.net)
For example, in areas with high traffic volume, the number of traffic lanes established was shown to reduce the likelihood of a crash. (maineinjurylawyerblog.com)