Deliveries and pickups refers to freight trips, which are trips to deliver or pick up stuff. We estimate the number of deliveies and pickups from the floor areas of various uses times a freight trip generation density.
Deliveries and pickups = Freight trip generation rate density * floor area of use * working days per year
Used to calculate: freight miles by mode
Depends upon:
—Parameters: freight trip generation rate density and working days per year
—Other metrics: usable areas (floor area)