Newman notes that Portland has about the same population as Perth and had a similar population density at the time. 纽曼指出,波特兰的人口与珀斯大致相同,而且它们当时的人口密度相近。
For example, Newman accepts it would be hard for a city as hilly as Auckland to develop a really good rail network. 例如,纽曼承认像奥克兰那样的丘陵城市建设一个良好的铁路网将是很困难的。