Admittedly, driving is more convenient than using public transportation, but the benefits of public transportation outweigh the drawbacks.

admittedly 是副词，由动词 admit（承认）加上后缀 -tedly 构成。admit 本意是"承认、接纳"，admittedly 表示"诚然、无可否认地"，用于引出说话者承认的事实或观点。