(01-16-2016, 05:14 AM)tomh009 Wrote: Given the LED lighting composition made up of individual LEDs, it should also be possible to position LEDs and lenses to make trail lighting that lights a rectangular area of the trail, rather than the usual fully circular area, where much of the light is "wasted" on the trail surroundings.This would also limit light "spillage" into NIMBYs'neighbours' BYs.
Lights on motion detectors would also greatly reduce power consumption. The disadvantage to NIMBYsneighbours is the annoyance of lights that are constantly cycling on/off as people use the trail. OTOH fixtures that target light on the trail rather than in all directions would mitigate that.
(01-16-2016, 07:04 AM)jamincan Wrote: That would run counter to best practices for CPTED though, as far as I know.Could you expand on that?
Natural surveillance [Wikipedia] seems to suggest focused lighting would be a good idea.
Quote:• When creating lighting design, avoid poorly placed lights that create blind-spots for potential observers and miss critical areas. Ensure potential problem areas are well lit: pathways, stairs, entrances/exits, parking areas, ATMs, phone kiosks, mailboxes, bus stops, children's play areas, recreation areas, pools, laundry rooms, storage areas, dumpster and recycling areas, etc.
• Avoid too-bright security lighting that creates blinding glare and/or deep shadows, hindering the view for potential observers. Eyes adapt to night lighting and have trouble adjusting to severe lighting disparities. Using lower intensity lights often requires more fixtures.
• Use shielded or cut-off luminaires to control glare.
• Place lighting along pathways and other pedestrian-use areas at proper heights for lighting the faces of the people in the space (and to identify the faces of potential attackers).