planning of analysis of 3 radiostations

We're working in our group of 3 and we are all going to be analysing 3 differnt radiostation
ruhul will be doing radio 1
alex will be doing bolton fm
and ill be covering heart fm
through doing this we can analyse what radio connventions are used for local stations and if there is any major differnces in the conventions used on national radio stations.
i expect to find that the local radio stations will have larger sections dedicated to news updates for various issues such as traffic and congestion whereas the national shows will have more live interviews with guest dj's and play more music and then have a specific section dedicated to the news ever couple of hours rather than constant updates.