Certain elements within one category may provide overlapping benefits to another
category. For example, the use of porous pavements in sidewalks or parking areas increases
the amount of stormwater retained onsite and reduces runoff impacts to environmental
resources. As a result, less detention capacity needs to be constructed, which in turn reduces
the consumption of resources. On the other hand, not all of the options can be implemented
and some of them conflict with each other. For example, some inherent conflict exists
between using narrow streets and providing adequate emergency vehicle access or
simultaneously providing truck access and pedestrian access within a constrained right-ofway.
A few examples are provided in Table 2.