This interactive visualization combines a parallel coordinates plot with a geographic map to explore route data from the ORBIS Roman Empire model. Each polyline represents a route, with dimensions such as month, priority, expense, duration, and length arranged as parallel axes. Clicking an axis title recolors routes according to that dimension using a blue-to-red ramp. Brushing along an axis filters the displayed routes, with matching routes highlighted in red on both the coordinates and the map. The map renders route geometries from the TopoJSON data, while the parallel coordinates chart uses d3.svg.axis and d3.svg.brush for interactive filtering. The visualization animates route paths and color-codes them by month or selected dimension, supporting exploration of how route probability relates to multiple factors. The layout places a map at top and the parallel coordinates below, with dashed routes on the map and semi-transparent lines in the chart. This example uses D3 v3 with the geo projection and TopoJSON plugins.