Parcel and courier delivery vehicles are often blamed for traffic congestion in our cities. But they're only a fraction of the traffic caused by tradespeople and other services.
Rail advocates often make the case that trains are a cleaner mode of transportation, but why is that so? And what would it take to expand rail in the U.S.?
US cities were designed and engineered around cars. Now some are working to increase walking and biking, but the shift isn't easy.