From reading the article, they do not fix the numbers of cars, so it is likely that the number of cars has a greater effect on flow.
Improvement in roads always lead to more cars, beyond what was expected. Entire suburbs get created when roads improve!
From the article:
"the removal of main roads does not cause deterioration of traffic .../... some motorized travels are not transferred on public transport and simply disappear ("evaporate")."
Improvement in roads always lead to more cars, beyond what was expected. Entire suburbs get created when roads improve!
From the article:
"the removal of main roads does not cause deterioration of traffic .../... some motorized travels are not transferred on public transport and simply disappear ("evaporate")."