SR
Welcome to the forum, you might want to have a look at the following FAQ which explain where everything is
Welcome to Benefits and Work In case you are not aware, your real name appears to be showing in the forum, if you want to change this then follow the instructions in the following FAQ
My full name is showing, how can I stop it?
The assessor will consider how you get to and from the interview as part of the assessment, so give some thought to how you might explain how you have managed this.
Have a look at the PIP Claim guide there is a section at the back that covers the assessment and the questions you are likely to be asked.
Best of luck
Gordon