I need to make a trip tomorrow from Preston to Coventry to pick up an elderly relative who can't get the train, and then straight back to Preston. I want to avoid traffic as much as possible and need to be back to Preston for 3ish as I don't have anyone to do the after school run, only the morning one. Is 6 am a good time to leave here or will I get a lot of traffic? What's the best time in the morning to avoid it please. Thank you