Do the Submission Ideas have to incorporate data and connected technology or can it just be an innovative idea?
Thanks very much for your question. We are interested in all innovative ideas which look at ways to make Mississauga an even better city.
There have been widespread concerns within the city, region, and globally, about the paradoxical worsening of light pollution due to LEDs. These lights, while more efficient, are also dramatically brighter blue light, which shines far beyond the intended "cone" range, into homes, backyards, and, most concerning, into the sky, marine areas, and natural areas. Such light pollution is more than just a nuisance, but an incredible waste, while further fragmenting "core habitat" in natural areas, as light goes deeper (and again, bluer) into these habitats. The issue of blue and bright light can be remedied immediately, as these advanced systems should have capability to change their hue to redder/orange colours (as widely recommended), as well as dimmed, with minimal impact on lifespan (with cost savings, reduced pollution, and less stress on human/plants/animals). Further reductions in light pollution must be taken on all installations through physical modifications to the structure, most likely with the addition of "reflective cone" coverings, which only direct light downward, up to a 45 degree angle in any direction, as well as the reduction of some light poles, in areas where they are too densely located (shifting these resources to areas where there are too few, or saving the infrastructure for future replacement as needed).
In conclusion, I would like these concerns and recommendations to be publicly addressed before any further LED infrastructure is installed without proper research on the impacts, and adoption of best practices.
More on this issue:
Thank for your Smart Cities Challenge question concerning light pollution
associated with LED street lights.
The City of Mississauga has recently completed the conversion of
approximately 50,000 street lights to LED lights. The conversion has
significantly reduced maintenance costs by 50% and has resulted in in a 63%
reduction in energy consumption to date for the City.
Prior to undertaking the conversion, the City researched the light
effects from LED street lights to establish the lighting requirements for the
Mississauga’s roadway illumination levels are designed to meet the
guidelines of the Illuminating Engineering Society of North America’s RP-08-14
manual that is widely used by municipalities across North America. The
LED street lights are directional in nature, projecting light only on the road
and sidewalk areas. They reduce the amount of light pollution and are
compliant with the International Dark Sky Association in terms of being
dark-sky friendly by reducing sky glow.
The LED street lights used in Mississauga have a colour
temperature of 4,000 to 4,200 Kelvin which falls within the colour spectrum of
moonlight and is below the blue colour spectrum. The white light of
LED provides a safer light with better visibility and clarity to both
pedestrians and motorists.
In addition, the City uses a street lighting monitoring system
with the ability to check the status of the street lights including
malfunctions and energy consumption in real time. The system includes
adaptive or dimming capabilities to emit only the amount of light required by
the standards adopted by the City.
For more information on the LED Street Lighting Conversion
Project, please refer to the following link: http://www.mississauga.ca/portal/residents/streetlighting
How will this connect to our other strategies and plans (there is expectation by now that such connections have begun to be explored and made, before a full consultation, internally), particularly our DT21, Ward Master Plans, LGMP, and Climate Strategy?
Thank you for your question. Yes, the Smart City Master Plan
will take into consideration all of our other existing and developing Master
Plans. City staff and our partner the Canadian Urban Institute (CUI) will be
creating the Smart Cities Challenge submission and Smart City Master Plan and
as part of the process we will be reviewing all master plans and strategic