[snip]
> Subject: Re: [FRIAM] Controlling emergent properties of traffic
[snip]
> 
> What would you call that intervention strategy?   
> 
> I think of it as intervening in the feedbacks of a system in a way that
> requires smaller interventions for the intended result, and is less
> likely to accidentally have an effect opposite the one intended, than
> interventions designed to 'control' the undesirable symptoms directly.
> 
[snip]

Phil,
I'll have to give your question a bit more thought but my first guess was that
it's more like a small, directed perturbation in a dynamic system in an attempt
to push the state variables into a different quasi-stable basin of attraction. 
The "accidentally have an effect opposite the one intended" part may be a clue
that there are "poles in the right-hand plane"--to borrow the
control-engineering phrase.

I've got a deadline to meet tonight so I may not be able to get back to this
until tomorrow but I thought I should at least mention this so the dynamical
systems gurus can address your question in the interim.

--Ross



 
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