Public transit projects are extremely expensive, often costing hundreds of millions or billions of dollars. Most local governments cannot afford to build them without federal help. If this bill becomes law, it would effectively halt many major transit expansions across the United States. This could lead to more traffic congestion in cities that are unable to expand their transit systems to keep up with population growth. On the other hand, it would reduce federal spending and shift the responsibility for local transportation entirely to the states and cities that use them.