According to the AP, transit ridership in Utah grew 34 percent in 2011. The article cites high gas prices and new TRAX lines as likely causes for the increase.
That makes sense, but there might also be more to it. The trend of Millennials eschewing driving, for example, has been well documented and makes headlines every few weeks. The impact of that shift on Utah’s transit system might be small, but it’s an impact nonetheless.
Relatedly, The Atlantic Cities Eric Jaffe recently explored ways to increase transit usage:
After controlling for key demographics the researchers found a consistent pattern: System expansion increases transit ridership a little. Car regulation increases it a lot. And fare subsidies have no effect at all.