The closest airport is John Glenn International Airport: http://flycolumbus.com
Columbus has an extensive bus system: http://www.cota.com
For those wishing local accommodations, several area hotels have indicated their interest in welcoming you. Below are the names, websites, phone numbers, and most recent rate information available. As there is an important home football game the day after the symposium, rooms are at a premium, and it would be in your best interest to reserve a room as soon as possible. There are no fixed rates with the high demand, so your prompt attention would serve you well.
Hyatt Place, OSU: https://columbusosu.place.hyatt.com/
(614) 280-1234, $171/night.
Hampton Inn, Convention Center: http://hamptoninn3.hilton.com/en/hotels/ohio/hampton-inn-and-suites-columbus-downtown-CMHHSHX/index.html
(614) 559-2000; $139/night.
Holiday Inn Express & Suites, Columbus Univ Area — OSU:
https://www.ihg.com/holidayinnexpress/hotels/us/en/columbus/cmhol/hoteldetail?
(614) 447-1212; $145/night
(614) 559-2000; $139/night.
Holiday Inn Express & Suites, Columbus Univ Area — OSU:
https://www.ihg.com/holidayinnexpress/hotels/us/en/columbus/cmhol/hoteldetail?
(614) 447-1212; $145/night