People look at a new sign aboard one of San Francisco's new light rail vehicles in December 2017.
People on bicycles participate in a 'People Protected Bike Lane' demonstration in memory of a fellow bicyclist killed at the intersection of N. 12th St. and Linden Ave in Minneapolis.
Amtrak passengers walk on the platform at Klamath Falls station as they wait for the train to depart in December 2018.