 Salang Watt is the main road to the north-west, whereas Asamayi Watt and Seh Aqrab (also called Sevom Aqrab) is the main road to western Kabul.The steep population rise in the 21st century has caused major congestion problems for the city's roads.In efforts to tackle this issue, a 95 km outer ring road costing $110 million was approved in 2017.