To be fair Iranu, 20mins in a car isn't a reflection on how far it is - or if it's safe to do so.
I personally would not want to cycle up the A5 everyday... I'd be scared to death!! I'm hardly a fan of cycling, but I just can't see myself doing it on many of the roads between my house and work!
I'd feel safer on a motorbike... atleast you have the power to get out ( or into ) trouble. My legs aren't up to that kind of demand!