The project is adding two lanes on either side of I-35. https://www.mysanantonio.com/news/local/article/i35-eminent-domain-18428832.php
Without a network of bus & HOV lanes in general, wide highways & roads will always reach a point of congestion.
https://www.mysanantonio.com/news/local/article/austin-i35-expansion-project-18308420.php
Evolving urban & regional rail is a key component.
https://www.mysanantonio.com/news/local/article/san-antonio-austin-mega-metro-transportation-18269914.php Austin-SA or SA & A?
Texas has more people than Australia & Texas is mostly still rural. Urban density can help to keep it that way.
