As Nashville digs deeper into solving its mass-transit troubles, business leaders and residents alike are taking a more proactive stance in being part of the solution.

From sidewalks to bike lanes, there are number of things the city can do to improve mobility, but the two costliest fixes — light rail and bus rapid-transit— continue to dominate both headlines and conversations.

Currently, the region’s plan calls for changes along Nashville’s five high-capacity corridors, including four light-rail…