The ToolBox concept is applicable in the selection of lengths for maintenance (candidates), linked to comfort, safety, durability and the environment, including how the data is used, combined and weighted within current decision tools and models. ToolBox has not developed new models, for the technical parameters that are not currently measured (e.g. fuel consumption) but identified and extracted key tools from existing models used in Europe. The work has considered and developed an understanding of how existing knowledge (data) should be used to account for road user expectations in the selection of object lengths for maintenance. These existing and new concepts have been used to establish a set of functional triggers for selecting lengths (candidates) for maintenance on the network that include road user expectations and combine them to make recommended prioritised treatment objects.