It’s become all too easy to opt out of taking the CTA with the quick, convenient allure of Lyft and Uber just a couple smartphone clicks away. Recent studies have reported that it’s becoming common for those who can afford ride share to substitute it in place of transit, walking, or biking rather than just using it to replace private car trips. The outcome could be a less efficient, safe, environmentally friendly, and just city.

Asked for their perspective on the proposed fee, representatives for Lyft and Uber didn’t directly address the issue but stated that they believe ride share is part of the solution for providing more sustainable travel options in cities.

“There are a number of factors contributing to CTA’s recent ridership declines, including historically low gas prices and the expansion of ride-hailing,” agency spokeswoman Tammy Chase says. “Preliminary analysis of recent ridership shows that declines have been more pronounced in the late-evening and early-morning hours. AM and PM rush ridership has been less impacted, but has still seen some declines.”

The findings don’t bode well for the future of transit. When people who can afford to take Uber or Lyft choose to do so because it’s quicker and more dependable than buses or trains, that means more cars on the road, which could in turn slow down buses and lead to transit revenue shortfalls, resulting in fare hikes and/or and less frequent service. Those who can’t afford ride share may then have to deal with increasingly poor bus performance.

John Greenfield edits the transportation news website Streetsblog Chicago.