Transportation planners visited the L.A. region's Orange and Silver Line bus rapid transit lines. The Colorado planners were looking for features like elevated bus-only lanes and signal prioritization.
A Los Angeles planner explains in the article that the Silver Line "consolidated a hodgepodge of bus lines that used to cover the Interstate 10 and Interstate 110 corridors through downtown Los Angeles.
By putting in an elevated bus lane that runs down the center of the freeways, opening 20 stations with kiosks and electronic signage, kicking up service frequency to every five minutes during peak periods and establishing a flat $2.45 fare along the route, loyalty to the line has spiked."
Below is a promotional video produced by Colorado's Regional Transportation District's FasTracks program explaining their BRT plans: