The raison d'etre of Vise PE - holding freight trains coming south off the L24/1 connector from the L24 on the bridge in the distance and merge them into passenger traffic on the L40. The tower was still occupied (and received a coat of new paint) in 2013. The freight being passed is the 33740 (Genk-Zuid - Chatelet-Formation).
IC-A to Eupen starts down the Plan Incline to Liege-Guillemins.
AM96 527 climbs thePlan Incline in Ans. The line is arrow-straight between Liege-Guillemins at the bottom and Ans at the top. When the railroad was built in the mid-19th century a cable system was used to winch trains up.