An emergency information lighting system, comprising a primary light source and a housing for the primary light source. A pneumatic tire including a carcass 2 having a body portion 2A extending between bead cores in a troidal shape and a folded-back portion 2B provided continuously therefrom and folded back around the bead cores, and a belt 3 arranged on the outside of the tire in the radial direction. In this case, when a pair of the stripe electrode and the sub-strip electrode is defined as one cycle, the cycle is set to range from 10 \u03bcm through 150 \u03bcm. Such track facilitates the steering capabilities of a snowmobile, particularly when the snowmobile is traveling on hard and abrasive surfaces.