Al Shamal stadium will have a capacity of 45,120, with a permanent lower tier of 25,500 seats and a modular upper tier of 19,620 seats. The stadium’s shape is derived from the “dhow” fishing boat used in the Gulf. Spectators are expected to arrive from the Doha Expressway, water taxis, the Bahrain-Qatar Friendship Bridge and the new metrorail.
Source: http://www.qatar2022bid.com/