That is true if the new road does is indeed the source of the new traffic.  But it all falls apart if that future increase in traffic will be coming regardless of whether the road is built.  that&#x27;s where the paradox really breaks down.<p>You cannot solve the problem of an external source of new traffic, be it a new stadium at the edge of town or new machine added to the edge of a network, by not building in any new capacity.  Well, you could if you simply chose not to serve that new node.  Not running any new roads to a new airport is a great way to get that airport to close, just as not serving that new customer on your network is a great way to make that customer go elsewhere.<p>The other flipside to the pardox is that it really is applicable to any network.  Sometimes the best way to improve the efficiency of mass transit is to cull bus&#x2F;train routes.  But try selling that in a modern city.