This is the 15150th most frequent Russian word.
полотно
"Polotno" is defined as "canvas, cloth, fabric, or panel."
In this sentence, 'полотно' refers to a canvas or a painting on fabric.
На стене висит красивое полотно с изображением гор.
There is a beautiful canvas depicting mountains hanging on the wall.
Here, 'полотно' is used metaphorically to describe the road as a continuous piece of fabric.
Дорога протянулась, словно длинное полотно, вблизи горизонта.
The road stretched like a long cloth near the horizon.
In this usage, 'полотно' is a literal reference to cloth or fabric.