Trails are safe places for exercise and active transportation, so they help people of all ages combat cardiovascular disease, diabetes, obesity, and other effects of inactive lifestyles. By separating bike and pedestrian traffic from roadways, trails can improve safety. Trails bring foot and bicycle traffic, which is good for business, and long trails often attract significant tourism. Trails can be resources for historic preservation and education, as well as corridors for nature. Trails tend to reduce crime in the areas they serve and increase nearby property values. They help the poor by making car-free transportation safer and more comfortable. Ultimately, they make communities more attractive places to live and work, which helps recruit and retain investment in new businesses, industries, and residents.