You have a great maintenance plan that takes into account the 25-year lifespan of the highway as designed. Each year, you perform maintenance that effectively replaces 4% of the road while doing minor touch-up work on the rest. You are on a different span of the road each year, only coning-off 4 miles of a 100 mile span. You proudly regard your system that keeps as much of the road as possible in as good of shape as possible, this year and every year.
To your users, it looks like the road is continuously under construction and never fully available. The four miles of construction lead to backups that extend further, and they are there every year. Why is this road always breaking down? Can’t they build it right?