W 103 Start of Climbing Lane 11 Nov 2014 Category: Warning Signs Description Description W 103 Start of Climbing Lane The W 103 Start of Climbing Lane sign should be provided at the start of a climbing lane on a single carriageway road. Click to rate this post! [Total: 0 Average: 0] Related products W 007RL Staggered Junctions – Right/Left W 003R T-Junction (Type 1) – Right W 001 Crossroads €80.00 W 002L Side Road Left