More choice is attractive to customers, but at the same time reduces their conversion rate – more people see, but fewer people buy.
If you have an e-commerce business, show to each visitor only a limited choice of products (based on their previous behavior, demographics, etc.) Allow them to search or ask for more options, but only show them a limited list of products on the page (preferably no more than 6.)
Sometimes you go over the speed limit for a short time, when overtaking another car for instance. It would be beneficial and just not to get a speeding ticket when this happens.
Use multiple traffic cams that measure multiple speeds over a certain length of the road, instead of only one. This would enable the discovery of true speeders as opposed to an occasional over the limit occurrence.