Conservatively speaking, the Northern Taiwan Metropolitan Area ought to include Taipei County and even everything north of Hsinchu. Thus in the long term it ought to encompass science and technology, airports, agriculture and seaports.
保守一點，北台灣都會區要包括北縣，甚至新竹以北都應納入，如此有科技、有空港、有農業、有海港，長遠來說應該這麼走。