Bologna often ranks as one of the top cities, in terms of quality of life in Italy   Bologna is a very important railway and motorway hub in Italy.  Bologna is renowned for its culinary tradition.ologna often ranks as one of the top cities, in terms of quality of life in Italy   Bologna is a very important railway and motorway hub in Italy.
The differences surprised us! Vehicles equipped with the 2/32 minimum tire tread depth took about 100 more feet to stop and were still traveling at about 45 mph at the same distance the vehicles equipped with the 4/32 deep tires had already come to a complete stop!
â¦ tread depth, tires do not have enough biting edges and shallower circumferential grooves to effectively evacuate deep snow and slush. The illustration below shows tires (from left to right) at new tread depth, worn to 6/32 and then worn to 2/32.