Appian Way - an ancient Roman road in Italy extending south from Rome to Brindisi; begun in 312 BC

arterial road - a major or main route

divided highway, dual carriageway - a highway divided down the middle by a barrier that separates traffic going in different directions; "in England they call a divided highway a dual carriageway"

expressway, freeway, motorway, pike, state highway, superhighway, throughway, thruway - a broad highway designed for high-speed traffic

Flaminian Way - an ancient Roman road in Italy built by Gaius Flaminius in 220 BC; extends north from Rome to cisalpine Gaul

highroad, trunk road - a highway

interchange - a junction of highways on different levels that permits traffic to move from one to another without crossing traffic streams

road, route - an open way (generally public) for travel or transportation

traffic lane - a lane of a main road that is defined by painted lines; "that car is in the wrong traffic lane"