Analysis of the truck trip generation characteristics of supermarkets and convenience stores
Transport engineers and urban planners use truck trip generation as one of the tools to identify the effects of trucks on urban congestion, pollution, safety, and the strain on the road network. Truck trip rates for supermarkets and convenience stores are higher than other retail facilities as they require more frequent and timely movement of goods, particularly perishable items. Supermarkets and convenience stores contribute to significant truck traffic in urban residential areas and thus have high exposure to rising fuel prices. A manual truck count survey was conducted on the supermarkets and convenience stores in one New Zealand town. The main factors influencing truck trip generation rates of the stores are examined such as the physical and operational characteristics of the store and origin of loading of the truck. Correlation analyses are performed on the parameters to determine their influence on the truck trip generation of the stores. Moreover, freight energy consumption and fuel intensity were calculated from the truck type and trip length of the deliveries. The major differences in the distribution patterns of the stores highlighted their differences in their freight energy consumption.