Truck Yards, Trains, and Delivery Density
On commutes, note railcar congestion, container stacks, and the tempo of yard tractors. In neighborhoods, count parcel vans per block near lunch compared with evening. High density can reflect healthy throughput or last-minute catch-up. Pair observations with store stock levels to infer whether goods are simply in transit or truly abundant. Share maps, timestamps, and rough counts to refine the picture. This citizen logistics layer adds motion to static indicators and grounds macro narratives in visible movement.