Trespassers, construction site

Both authorized and unauthorized visitors to a construction site are vulnerable to an accident particularly if the trespassers are children. 

The provision of warning signs at the perimeter fence and suitable viewing points for the public to observe the construction work safely has been shown to reduce the incidents of site trespass. 

Sources of land pollution include direct dumping of domestic and industrial solid waste, excessive application of agrochemicals, and indirect contamination resulting from leaks or from leaching of hazardous components from liquid waste disposal sites or from atmospheric fallout. Land may also become contaminated by chemicals processed, stored or dumped at the site, perhaps in the distant past. Such contamination may pose a health risk to workers on the site, those subsequently involved in building, construction or engineering works, or the public (e.g. arising from trespass), and to animals. 

In the discussion above, conditions described referred to perfect world conditions—that is, to those conditions that we would want (i.e., the security manager s proverbial wish list) to be incorporated into the design and installation of new chemical industry infrastructure. Post-9/11, in a not-so-perfect world, however, many of the peripheral (fence line) measures described above are more difficult to incorporate into chemical industry site infrastructure. This is not to say that industrial chemical facilities do not have fence lines or fences most of them do. These fences are designed to keep vandals, thieves, and trespassers out. The problem is that many of these facilities were constructed several years ago, before urban encroachment literally encircled the sites—allowing, at present, little room for security stand-backs or setbacks to be incorporated into plants or critical equipment locations. Based on personal observation, many of these fences face busy city streets or closely abut structures outside the fence line. The point is that when one sits down to plan a security upgrade, these factors must be taken into account. 

Where children are known to live nearby, it is often useful to arrange with teachers at local schools to show one of several films available on dangers of building sites. Contact with parent/teacher associations can help to spread awareness of construction dangers. A letter to parents of adjacent housing containing helpful advice, but not threats, is a tactic that has helped to limit the numbers of child trespassers on some sites. 

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