Now the second rule is natural access control, what this means is plain and simple doors. Doors are a way to control access to areas but it is not the only one. Only the most basic. There is also things such as fencing, shrubs, and psychological things such as how things are made, for example the patterns/ colors of tiles used and such. Psychological barriers like mentioned above let the person know that this is where one thing ends and another begins and marks the property up in a way that is stylish and it gets the job done without obtrusive fences sticking out every which way. Something important about this rule is that there shouldn’t be obstructions that impede movement. So the fences sticking out marking every property line in public places would be very obtrusive and look rather ghastly so it’s important to keep that in mind. Rule number three is territorial reinforcement which is when a person’s property can be clearly identified from their neighbors. This is important because people like taking care of what is their own so if it is easily identified then there won’t be anything going bad in their property because it is theirs and theirs …show more content…
They want their property to look good so in order to do this they have to maintain it and everyone knows that property that doesn’t look good could be a host for criminal activity, this prevents that. Now with all these rules put together then you have the CPTED system which is vital in keeping crime down. With these rules you might wonder, “Well how are they implemented?” and the answer to that is that there is a 3-D approach to it. There are three D’s and those are designation, definition, and design. These are used to determine how a specific environment is doing in following the four rules above. Let’s look at the first one, designation. This is what the purpose of the design originally was, if there is a conflict with what it is and what it was intended to be. The second rule is definition which is how is it defined? Are there things marking it in a way that show that it is someone’s property? And the last one is design which asks how well was the intended object designed? Does it fulfill its purpose correctly or does it leave more to be wanted? These conceptual principles are used in conjunction with the four rules above in order to make CPTED possible and the most effective