The foreman of BNSF Railway job 101 in Portland, Oregon, using hand signals to ease locomotive no. 3613 into a cut of boxcars at the 12th Street Yard. Ubiquitous in the days before radio communication, hand signals (and nighttime lantern signals) are becoming rare due to advances in technology and changes in business practices as railroads focus more on long-distance hauls. The cars in this photo are destined for the nearby Holman Distribution warehouse, the last major customer in a once-bustling urban switching district. At its peak, the 12th Street Yard handled dozens of cars daily; in 2011 it sees only a handful once per week.