请教一个pp阅读中的句子！

IcePoint

since canadian metropolitan areas have only one-quarter the number of kilometers of superhighways per capita as united states metropolitan areas-- and at least as much resistance to constructing more--suburbanization of peoples and functions is less extensive north of the border than south.

整句话什么意思？

cranberry

由于加拿大大都市地区人均高速路的公里数是美国的1/4，而且建设正面临阻力，所以界限以北地区人口和功能的城郊化的进程比以南要缓慢。

IcePoint

这里的as much是什么意思？能否把and at least as much resistance to constructing more这句话再翻译的准确些。

cranberry

至少面临和美国一样的阻力