They are an easy identification of the tread type during the manufacturing and assembly process.
It can be, when referring to part of a tire. The verb to tread means to walk.
As a verb, tread means the way someone is walking. As a noun, tread can mean the top of a stair (where you step on), or the tread of a tire.
Stripes on the tires are just identification used by the manufacturer. Different variations in stripe width, color, and count means a certain tread goes with a certain tire.
That means it is a passenger car tire with tread width of 195 millimetres
It is an indicator of tire tread wear.
It means it is a tire for a passenger car and tread is 235mm wide.
A hump on a tire usually means the interior belt is split. This is dangerous on tread or on sidewall (where it more commonly happens from the tire hitting a curb)
If you mean tire tread depth, the minimum is 1.6mm.
It means tread from the tire of an 18 wheeler on the road.
Tires need replacing. 2/32nds is the minimum tread depth for a tire to be safely used. In most statesin the USA it is a law, can get ticketed. Tire tread that low compromises braking handling in wet and snowy conditions.
Minimum LEGAL tire tread depth is 2/32nds of an inch.
Tire spec in PA is 2/32 of an inch of minimum tread