Where do you put the "more car lanes"?
Houston is almost entirely lanes and parking, they're still congested. At which point do you have enough car lanes?
The rest of the lanes sure; a fully used bike lane like Boulevard de Sébastopol is worth 8 lanes of car traffic. That helps. But more car lanes?
> Where do you put the "more car lanes"?
I'm not very familiar with Houston, but a quick google search shows that there is a big project underway right now to add more lanes in Houston [1]. So it would seem that civil engineers there have found a place to put more car lanes that they think will help with traffic congestion.
> At which point do you have enough car lanes?
As long as Houston is growing (currently it is the second fastest growing city in the US), I don't think there will ever be enough. They need to continuously improve their transportation infrastucture to keep up with a growing population. As I said above, I think this should include bike lanes and public transportation too. But if engineers identify a solution to alleviate traffic congestion by building more roads, then I think that is worth considering, too.
[1] https://www.txdot.gov/about/newsroom/local/houston/i45-const...