1. 2+2 Road

A 2+2 road is a road with four lanes in total, consisting of two lanes in each direction. The two directions of traffic are usually separated by a median, barrier, or road markings, allowing vehicles to travel in both directions with continuous overtaking opportunities.

  • 4 lanes total (2 per direction), often separated by a median or barrier.
  • Often separated by a median or barrier.
  • Designed for higher traffic volume and smoother flow.
  • Overtaking is always possible without waiting for a special section.
  • Drivers must return to the right lane after overtaking.
2+2 Road

A 2+2 road with cable barrier. (N4 Dromad/Roosky, Ireland) © Wikimedia.org/Trans5999, CC0