An arterial road is a high-capacity roadway designed to move large volumes of traffic between different areas of a city or region. Arterials connect neighbourhoods to highways, commercial areas, and other destinations, sitting in the road hierarchy between local residential streets and freeways. They typically feature multiple lanes, traffic signals at major intersections, and limited direct access from adjacent properties to maintain traffic flow. Municipal transportation planners balance arterial road capacity with the needs of pedestrians, cyclists, and transit, as these routes often carry buses and are challenging to cross on foot.