Figure 5: Illustration of Fast Routes map layer (left) compared with Route Network layer (right). The Route Network was was produced by aggregating all overlapping lines in the Fast Routes layer using the stplanr R package. This section describes and illustrates some outputs from the PCT, alongside discussion of how these outputs could be used in transport planning. Note that some details of the graphics in the online version may evolve as the PCT develops. Tabs are panels within the PCT that reveal new information when clicked (see the top of Figure 3). Of these, the first four provide region-specific information: • Map : This interactive map is the main component of the PCT, and is the default tab presented to users. It shows cycling potential at area, desire-line, route and route network levels under different scenarios of change, as described throughout this paper. ‘Popups’ appear when zones, desire lines or segments on the Route Network are clicked, presenting quantitative information about the selected element. • Lines : When lines are displayed on the interactive map, this tab provides raw data on 22 4 Outputs of the Propensity to Cycle Tool 4.1 Model output tabs