(Billings, MT -- April 15 | Jackie Yamanaka, Yellowstone Public Radio) A group of Billings citizens met this week to discuss how to make Montana’s largest community healthier through the design of its streets.  There’s a national movement taking place to make sure streets can accommodate motorized vehicles, bicycles, and pedestrians of all ages and abilities. Advocates say it can lead to a safer, healthier, and more livable communities.