All I could find is this paragraph: > Some countries regularly have extremes in temperature that affect their railway. They may adjust their rails between summ

All I could find is this paragraph: > Some countries regularly have extremes in temperature that affect their railway. They may adjust their rails between summer and winter, or have other measures in place to manage the effects over the long term. Which, when paraphrased, says: "Other countries may or may not do something else". (Which, when paraphrased, says the PR person had no effing clue.)