Bristol can be reached by road, rail, and air.
Bristol airport is a short public bus (https://www.bristolairport.co.uk/to-and-from-the-airport/bus-and-coach) or taxi ride away from the city and has a number of flights to other cities in Europe.
There are two major railway stations that serve Bristol: Bristol Parkway and Bristol Temple Meads. Both are accessible from stations in London as well as other major train stations around the United Kingdom. Bristol Temple Meads is about a 35 minute hilly walk away from the University, the University is accessible from Bristol Parkway by taxi or public transport. Tickets are cheaper when booked in advance. For conference attendees are eligible for discounted fares on Great Western Railway services (including from London Paddington and Bath Spa to Bristol) – see this link for more information (https://www.visitwest.co.uk/meet/attend-an-event/discounted-train-travel).
Bristol is also easily accessible via coach/bus via companies like National Express, Mega Bus, etc. Coach transit is generally less expensive than rail or air travel.
While you’re at the conference, all major sights are within walking distance of the University. However, if you wish to take public transport, there is an extensive network of buses and trains connecting areas across the city and its hinterland.
For more detailed information, see the Visit Bristol website, https://visitbristol.co.uk/your-visit/travelling-to-bristol
You can access timetables and routes for buses here.
There always taxis that can be caught from near the University campus. Uber, Ola, and V Cars also operate taxi and ride sharing app services in and around Bristol.