If this was about safety, cops wouldn't be hiding their patrol cars in shrubbery or posing as surveyors with their radar guns, they'd be out patrolling the roads pulling over the jerks that tailgate, weave in and out of traffic and who commit other acts of aggression and road rage.
Nothing against the cops here as they are just doing what they are being ordered to do - fill the town coffers with lots of speeding fines.
Indeed, in places where speeding would actually be dangerous most drivers are cognizant of this fact and consequently there are often not enough "speeders" to make enforcement worthwhile, even though the few speeders that do exist in such places pose a much greater public danger than the many speeders on roads that are posted for 55 but could safely be driven at 80.