The number of down-trains daily is fifty-one, and up-trains fifty; the ropes, therefore, travel 155.25 miles on the up-line, and 158.35 miles on the down-line, or altogether 313.60 miles daily.
a railway line on which trains travel away from a major terminus
الواصلة
a rail·way line on which trains trav·el a·way from a ma·jor ter·mi·nus