[Startrek (Martin)]

This coming week is international dark sky week ( IDSW ) which has been on the world astronomical calendar since 2003
To be honest I’ve never heard of it before
One of the main topics of discussion and awareness is the poor design and implementation of artificial light for both residential and commercial applications.
A classic example is my neighbours on both side of me in Sydney.The neighbour on one side has excessive exterior lighting , poorly designed, over engineered where most of the light output is light spilled outside the intended task area.( mainly spilled into my backyard ) I would estimate the total watts in energy in their backyard exterior lighting is around 3500 watts and collective lumen output on average would be around 1800 lumens in an backyard area of 14m wide and 18m long. I jokingly call it mini Las Vegas as it’s literally like daylight.
The other neighbour has 14 exterior wall lights around the walls of the home ( 2 story) with no anti glare baffles or deflectors and 2 x 500watt flood lights in a backyard measuring 7m deep x 15m wide
Both neighbours have no lighting control ( movement sensors etc.. ) and leave their lights on until around midnight
I haven’t even mentioned side pathways , front and driveway lighting
To me a gross waist of energy and excessive artificial light pollution
I wonder how many backyards are like this in greater Sydney

Comments welcome in regards to IDSW and excessive , poorly designed residential exterior lighting ( and exterior commercial lighting too)

Thanks
PS I’m not havin a winge , I’ve been living with it for years and still enjoy AP in my Bortle 8 location ( with my neighbours lights )
Visual astronomy forget it , I only do that at my dark site holiday place south coast NSW