The Carlson bus stop is the designated layover (or “catch up” time) for the 4th Street and University Avenue Circulator buses. A complete loop for each of these circulators is designed to take 30 minutes, but often it takes 20-25 minutes. The layover allows the driver to complete the loop and take any necessary break. If the buses were to continue, there would be no convenient point for correcting timing issues (like bus bunching) and facilitating driver swaps/breaks.