This is also an interesting article I read in Dallas Morning News

Can Medellín teach Dallas a lesson about the Trinity toll road?
As Dallas debates the merits of building a toll road along the Trinity River, it may find some lessons from an unlikely city in South America: Medellín.
Colombia’s second-biggest city also has a large river running through its center. While Dallas plans to build a road along the Trinity, Medellín has been devising a way to hide the highway along the Aburrá. The city recently approved a bold project to bury several miles of roadway under an urban park so that its 2.4 million residents can reclaim one of their most valuable natural assets.
Read more here: Can Medellín teach Dallas a lesson about the Trinity toll road? | Dallasnews.com - News for Dallas, Texas - The Dallas Morning News