It not neccessary to provide street lighting for Helicopters, low flying aircraft or Airships (yet), but it seems to me that much of the energy used for lighting goes up rather that down. There have been a few ideas put forward, all basically the same (to be optimal they would have to be ) so I will quickly go over the main points:
1. by reducing the height of the lamp by a half the energy on the ground is increased by 4.
2. an awful number of lights are more that 3 or 4 times taller than any thing that passes beneath them.
3. So, cut the lamps in half or as appropriate and reduce energy to a quarter or as required locall.
4. This might be acheived in a surprisingl short time – tho I do not have figures to prove that statement – and the safety aspect will be improved considerably, lower access.
5. People living along bus roots will be less likely to find themselves in situattions of great embaressment when they have forgotten to close the bedroom blinds.
Why is this idea important?
It is cheap and simple to execute with plenty of re-usable ‘bits’ left over.
The energy saved – hopefully – could be plowed in to the NHS .
I am completely unfamiliar with how these ‘blog’ thingies work so if I have put this in the wrong place please mind that I have PD and having to do it over again would be incredibally tiresome.