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. Related products W 012R Side Road on Dual Cway – Right Read more W 014 Crossroads on Dual C’way Read more W 008L Two Junctions on Left Read more W 004R T-Junction (Type 2) – Right Read more