CAF begins testing low-floor LRVs for SL June 5, 2014 | Europe News Stockholm's public transport operator Storstockholms Lokaltrafik (SL) has commenced trial run on the first Urbos Axle low-floor light-rail vehicle (LRV), delivered by Spain-based Construcciones y Auxi... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password