From The Columbus Dispatch: The Columbus (Ohio) district will have to drastically cut the number of bus trips that their high-schoolers take on the public transit system by the 2011-12 school year or face a skyrocketing bill. A measure approved by the Central Ohio Transit Authority (COTA) board calls for the district to be charged per ride. Last school year, the district paid $520,000 for more than 17,000 high-school students to have unlimited rides on COTA buses for one year.