How about a very basic lesson on permeable and impermeable concrete.
How about a very basic lesson on permeable and impermeable concrete.
This photo shows a driveway.
It has TWO types of concrete.
ONE is PERVIOUS
ONE is IMPERVIOUS
The impervious covers the areas that MUST be super strong (over the recharge pit and strong enough for trucks).
If this was subject to aerial photography it would be WELL OVER its impervious limit (approved to around 60%).
A lot of small in-fill developments USE this solution to allow a neat and tidy way of optimising the limited access space they have.
Auckland Council have used aerial photography and determined the impervious coverage based off photographs
Christchurch Council have done it too.
It is FLAWED and you can’t not load incorrect information onto GIS based on it.
I have the reports that were released by the Auckland Council.
Do NOT justify projects or rateable costs on aerial photography unless you have verified its accuracy. Auckland Council HAS NOT done this.
Currently aerial photography cannot distinguish between hard surfaces. Maybe this will change with higher quality photography and deep machine learning but logic tells me that the data from 2010 and 2017 could not do it.
