So we should do away with studs because they cost us (not the road department) $18 million a year and we only use them less than 1 percent of the time. If these are valid criteria, then we should also get rid of seat belts and airbags. They cost us over $18 million and we use them much less than 1 percent of the time.
Studs help keep us from having accidents so we don’t have to use the belts and/or airbags. Why isn’t the cost of accidents ever factored in?