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!
The BOCA guidelines also specify a minimum tread depth of nine inches and allow for a one inch protrusion, which is known as nosing. Some safety groups instead suggest a minimum tread of 11 inches. As with riser height, it is important that the tread depth be as consistent as possible to avoid causing you to stumble.