Would the tyres be road worthy if inflated and what are the signs to say that it is unsafe to drive on ?

Question from sklawuk, 27/10/2010 :If a car that has not been driven and parked on a driveway for 3 years, would the tyres be road worthy if inflated and what are the signs to say that it is unsafe to drive on.
Answer by rezulteo, 27/10/2010 :

You must check the crack presence on the sidewall but probably the bigger problem will be the permanent deformation and resulting vibrations during rotation.