+ Wouldn't expanding I-35 help reduce traffic?

Expanding I-35 would not reduce traffic. Widening highways worsens congestion by encouraging more driving, a phenomenon known as “induced demand”.

When Houston’s Katy Freeway was widened to 23 lanes, evening commutes got 19 minutes longer. In fact, of the U.S. cities where freeways were expanded, congestion increased by 144 percent - outpacing their population growth.