2 + 1 Highways: Overview and Future Directions

Table 6

Comparison of capacity impacts of 2 + 1 highways.

Country	Capacity (veh/h)
	2 + 1 highway	Two-lane highway
Sweden [10]	1,500	1,600–1,700
Germany [14]	1,300–1,400	1,600–1,700
Finland [2]	1,600–1,700	1,600–1,700
Finland [30]	1,400–1,500	—
Denmark [27]	1,900	1,700
South Korea [48]	2,000–2,150	—