That's what happens
if myopic fools disregard the question of sustainability.

Sustainability my ass. That's what happens when NIMBYs stop the process
of expanding the road system (which of course needs to go on permanently
as long as population is growing) and then blame drivers for the resulting
congestion.

This sort of red neck car driver attitude does not get you anywhere.
First of all, population is shrinking, not growing in most western
societies, only the number of cars is growing.

Not true in "most western societies", just backward old Europe.

I laugh as the EU tries to federalize more and more functions in a
pathetic attempt to imitate the economic success of the USA, when it
can never work as long as the residents of Europe insist on clinging
to its two biggest trade impediments: its high degree of socialism
and its multiple languages. But I digress.

Second, experience shows that building new roads does not solve the
problem of congestion, because as soon as a new road opens, it gets
clogged by additional traffic.

This only shows that the roads built were too few and too late. You
need to build enough to catch up with all the pent-up demand. So do
we, lately; the Greens are starting to ruin the US as they have
already ruined Europe.

Thirdly, appart from financial considerations there are other limits on
road building. Pollution levels and land use for roads can not be
increased indefinetly, in particular in the densely populated areas of
Europe.

Road space can be increased indefinitely without expanding land use
simply by stacking them up several levels high, as in Chicago's Loop
district. Or all of your obsolete, pre-automotive cities can start
making room for needed roads by taking a good dose of wrecking-ball
therapy (which should happen naturally, as a result of downtown
businesses closing for want of customers in places where driving and
parking there is too difficult).

As for pollution, the bureaucrats who plan land use should figure out
that causing congestion by not building enough roads only worsens
pollution. If I can drive straight to my destination and park, I
pollute a lot less than if I have to sit in traffic with my engine
idling for an extra hour.

It simply isn't reasonable to insist that people walk or bike. It's
needless work, and anyone with a brain will move, or break the law,
rather than comply.