On Wednesday, December 24, 2014 5:20:45 PM UTC, Neddie Seagoon wrote:
Folks,

I live in a sheltered housing development directly adjacent to the
village's football club. So far, we've got along just fine with the
club and its players and we'd like that to continue. However, the club
has submitted an application to install floodlights which is giving us
cause for concern...

The Environmental Health Officer's report on the proposal has this to say:

The proposal is for 4 18m high poles with luminaires. I have not had
experience with the luminaires proposed for this development they are
the non horizontal non asymmetrical throw types relying on lenses and
baffles to direct light to where it needs to be. They are at 18m to
ensure that the light can be directed downwards enough to illuminate
the pitch and minimise overspill.
The lighting levels showing the horizontal Lux levels and vertical Lux
levels demonstrate that the lighting can provide lighting levels of,
Between 84 Lux and 312 Lux on field with averages being around the
200 Lux mark (Horizontal Levels), ۬
Horizontal over spill of around 1Lux at the nearest residential
accommodation, ۬
Vertical overspill at 1.5m of 1Lux to 1.7 Lux on the vertical surface
for the nearest residential building (this would equate to ground floor
window level.
These levels are well within the Current ILP Guidance Notes for Light
Pollution. ۬

Quite frankly, we don't understand what these "spill" figures mean in
day-to-day terms. Are they equivalent to a full moon? A car headlight?
A room light?

Your thoughts would be appreciated.


Thanks,
Peter

http://en.wikipedia.org/wiki/Lux