What are the factors that contributed to the current transportation crisis in the US?

The current transportation crisis in the U.S. is driven by several factors, including supply chain disruptions exacerbated by the COVID-19 pandemic, a shortage of truck drivers, and aging infrastructure that struggles to meet growing demand. Additionally, rising fuel prices and increased consumer demand for goods have put further strain on logistics systems. Environmental regulations and the transition to sustainable transportation modes also complicate the situation, creating challenges for both freight and public transit systems. Finally, geopolitical tensions have impacted global trade, further complicating supply chain dynamics.