Events, get togethers, and suggestions on what to see and do in Columbus, Ohio!. The Central Ohio Transit Authority (COTA / ˈ k oʊ t ə /) is a public transit agency serving the Columbus metropolitan area, headquartered in Columbus, Ohio.It operates fixed-route buses, bus rapid transit, and paratransit, supplemented by vanpool and rideshare programs offered by other entities. Find 1 listings related to Cota Mainstream in Columbus on YP.com. See reviews, photos, directions, phone numbers and more for Cota Mainstream locations in Columbus, OH. Hoch Martha Pritchard Hoch, passed away Friday, October 18, 2013. Preceded in death by her husband of 58 years, Eugene T. Hoch, son Eugene Thomas Hoch, Jr., father Frank Cyrus Pritchard, mother Lucy See current career opportunities that are available at Central Ohio Transit Authority COTA is the public bus system in Columbus. It's either very bad or very good. The busses themselves are fine. It's the service that needs help. They also need to extend routes. I have used COTA to get around Columbus. It's mostly been for school and work. The hours are something they need to take a serious look at.