International Association of Campus Law Enforcement Administrators (IACLEA) Standards
In April, 1996, the International Associated of Campus Law
Enforcement Administrators Board of Directors adopted the
"Recommended Crime Prevention and Campus Protection
Practices for Colleges and Universities" which
included a provision calling for designed lighting levels
above that suggested by the Illuminating Engineering Society
of North America (IESNA) Recommended Practices. The following
paragraphs will attempt to explain the issues involved with
Guideline 12.5 and offer some insight into some changes in the
offing for 1997.
- The recommended practices published by IESNA -- in
particular, the illumination levels involving parking lots and
walkways-have for the most part, not changed -- at least since
1977. When they were first developed, these illumination levels
were based upon safety issues (i.e. the ability to see, avoid
tripping hazards) and the levels required to conduct the
rather limited tasks in these spaces (i.e. walking,
driving). Little was known at that time, nor was study effort
devoted to, the relationship of illumination levels to crime
occurrence. Consequently, it can be assumed that the issue of
security is only minimally addressed by the IESNA guidelines.
- The IESNA Recommended Practices are intended to apply to
all conditions on a national scale; they are not intended to
address specific unique crime environments or specific types of
operations. Note also that published IESNA illumination levels
are MINIMUMS and may not be sufficient to accommodate all
situations. This is particularly true of campus environments
where students, faculty and staff may be present at virtually
any hour, for social as well as business or academic reasons;
and we must also keep in mind that our largest campus
constituency is youthful and may not always have the maturity
level to recognize and avoid dangerous or threatening
situations.
- At the time the IESNA illumination levels were developed,
the climate of litigation was not what it is today. Colleges
and universities must maintain a standard of care that may well
exceed the norm in some cases, given the nature of our
community. From Pine Manner to Lehigh University, we have seen
an increasing amount of litigation asserting that an
institution was negligent in their efforts to provide a safe
campus. Poor lighting or no lighting at all supports
plaintiff's efforts because it points to an endemic lack of
concern for the safety and security -- even though the case at
litigation may not involve a poorly lit area. And we must also
remember that the IESNA levels are MINIMUM guidelines; thus,
the minimum for one campus locale may not necessarily apply to
another -- particularly as it relates to the prevention of
crime.
- Campus planners are often at odds with those responsible for
campus security. Frequently, the issue of esthetics wills out
over security because the persons responsible for designing a
campus lighting plan use IESNA as the ONLY standard upon which
to base their designs. Security personnel are seldom consulted
on such matters....sometimes out of fear (assuming planners
think to ask) that recommendations will compromises esthetics
and increase cost (which clearly they often do). The IACLEA
Practices were developed in an attempt to provide another
point of view -- another guideline if you will-- that campus
security personnel could use as justification for a higher
standard of care in the design of campus lighting systems.
- The IESNA illumination levels generally assume that proper
lighting systems will be provided with proper maintenance. As
a practical matter however, this simply does not occur. Most
often, lamps are replaced ONLY when they become fully
extinguished... and even then, some institutions as a matter
of policy do not dispatch maintenance personnel until a fixed
number of lamps require replacement. A number of light
sources (i.e. mercury vapor, and florescent) deteriorate over
the life of the bulb reducing light output by as much as 80%
before the lamp ever extinguishes to the level that would
generate a maintenance work order. There is also
the issue of insect infestation & tree growth which tends to reduce
light output. In both cases however, the amount of energy consumed
remains constant while the output diminishes. The higher-
than-IESNA-levels offered by the IACLEA Recommended Practices
tends to offset this problem thus compensating for the
depreciation of light output over the life of source.
- The notion that lighting reduces incidents of crime is
generally excepted. Indeed, there are a number of studies
reaching back into the early 1970's that link "improved
lighting" with a reduction in crime; but they fall short
of indicating how much lighting causes what level of crime
reduction. Will a parking lot illuminated to three foot
candles have less crime than a lot illuminated to the IESNA
level of one? As a point of fact, consider that IESNA
standing committees who are currently revising the
Recommended Practices do not use crime as a benchmark to
measure lighting effectiveness. The primary data for their
scientific studies is gleaned from insurance claims-- most
of which is related to accidents and tasks (i.e. the
ability to discern the face of an approaching attacker) to be
undertaken. Clearly, if IESNA finds the issue difficult, then
how are we to make this linkage... at least from a scientific
perspective? To further complicate the issue, a few studies
(i.e. Portland Schools and study programs in the UK) have seen
substantial reductions in burglary and vandalism when ALL the
lights were extinguished.
The usual answer to such controversial issues is to "study
it more carefully" and as years pass, and more crime occurs in
poorly lit lots, the issue is still not adequately addressed.
The IACLEA Recommended Crime Prevention and Campus Protection
Practices simply are erring on the side of safety-- if they
are erring at all.
- At colleges and universities, we are also concerned about
the perceptions of safety and security. Years of experience
tell us that better light increases the feeling of wellness
and safety. This has been proven to some extent in a March
1997 article of Security Management, the professional
publication for the American Society for Industrial Security.
In the article, the author notes that the subject groups
reported a heightened feeling of safety and security as the
illumination levels "approached three foot candles", but that
such perceptions generally plateau at this level. Beyond three
foot candles, the increase was only marginal. In the fast food
industry, marked increased sales and profitability have been
attributed to a substantial elevation of illumination levels.
It is speculated that patrons feel more comfortable at the
well lit restaurant and thus are more attracted to
it...particularly if light levels are substantially higher than
the surrounding neighborhood or nearby competing fast food,
operations.
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