Boulder officials have taken notice of Portland's system, and now are exploring several Portland-style street treatments.
One of the projects under consideration is to use colored bike lanes.
Marni Ratzel, the bicycle and pedestrian transportation planner for Go Boulder, said adding paint may also help increase awareness on Boulder roads.
"It's something new and more visible, and that helps raise the awareness of all users of the presence of bicyclists," she said. "I do think