&gt; So then you do what many cities around the world have done, and tear out highways to lower opex and create a more pleasant place to live.<p>Yes, you can do that: that&#x27;s a <i>capital cost</i> of maintaining quality of life under declining population. I&#x27;m not sure how a choice between continued declining quality of life <i>or</i> incurring a significant capital cost is a &quot;benefit&quot;, however.