Synonyms that are in the dictionary are marked in green. Synonyms that are not in the dictionary are marked in red.
Antonyms that are in the dictionary are marked in green. Antonyms that are not in the dictionary are marked in red.
These "trend-following" revisions suggest that the business is difficult to predict, which is surprising given the high predictability of railroading activity in principle and the increasingly widespread adoption of precision-scheduled railroading (PSR).