The linked news article doesn’t describe how it arrived at its cost figures. Suppose a city widens a freeway before hosting the Games. The widened freeway is us

The linked news article doesn’t describe how it arrived at its cost figures. Suppose a city widens a freeway before hosting the Games. The widened freeway is used afterward. Is this a “cost”? Does it make sense to count it as one? Maybe the underlying paper discusses this. Hopefully it does as it’s an important question.