I believe it's the owners responsibility to shovel the walks in front of their home. It might be a lot in Chicago I don't know? So I would report to 311 or call them and ask them who you should report to.
Touhy park never shovels the path between gate and fieldhouse. I saw a guy fall tryi g to pass on the inprovised path yesterday as it's now getting icey. Every snowfall though. City just closes out the 311 reqeusts as resolved even though they are not.