In part 1 of this series, we discussed what active and passive recreational uses were and how they are defined.
As we discussed, to be a passive use, the activity would have to meet 3 criteria:
As point #2 illustrates, it’s not only the activity, but the infrastructure of that recreational use that would be a factor in determining if an activity could be considered passive or active. The example used in the previous article was that of a football field and a multi-use trail.
However, if we have a trail, in this case multi-use, could an activity come along might not be passive use? And where does mountain biking, as an activity, fit in with the idea of active and passive use?
That will be some of the questions we will answer in this second part.
In the discussion of scientific instruments and measuring devices, there are two major categories: active sensors and passive sensors. Active sensors use some kind of directed energy, whether that be light waves, sound waves or kinetic means to measure properties about an item. Passive sensors do not emit any energy, but measure the observed item's own emitted energy, again, light waves, sound waves or kinetic means to measure properties of that item.
Some types of instruments can be in either passive or active types. Microscopes can be passively viewing or, like an electron microscope, they can actively view. Sonar on ships and submarines can do the same, passively listening for other vessels or sending out a “ping” to listen for the echo.
But when talking about active or passive recreational uses, what is being referred to? How can one activity be referred to as “active use” and a seemingly similar activity be referred to as “passive use”. How does this understanding of active and passive recreational use affect mountain biking in urban areas?
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