Wired has an article on solutions to the “last mile” delivery problem. A couple interesting stats are that 5% of deliveries don’t reach their destination on the first try (that sounds pretty good to me) and that this costs retailers about $18 each time. Most of the proposed solutions just have to do with better data on locations and delivery preferences.

This article repeats the claim that deliveries increase traffic congestion, although it admits this is “difficult to measure”. I am still a bit skeptical of this. I am willing to follow the evidence wherever it leaves, but logically I feel like these claims leave out all the trips individuals are not taking to the store. If a delivery truck brings 100 packages to 100 homes, that could mean 100 car trips that were not taken. And that was just one truck, although it is kind of a big obvious smelly one and it might be blocking the street, a crosswalk, or a fire hydrant for a few minutes. Those trucks might also be competing for city and suburban streets at times when people are coming and going from work trips, which could increase peak traffic congestion.