Briefly, noise exposure was based on transportation-related information, including road traffic data (e.g., speed limits, traffic volume, fleet composition, and road width), railway data (e.g., type of train, velocity, and frequency), and building heights and footprints.
One delaying factor could be that the auto companies in recent years engaged in major discounting, particularly in sales to rental car companies and other corporate fleets, to keep volume up.
Results indicate an increasing dominance of Asian fleets by the volume of catch from the 1950s to the 2010s, including fishing in the high seas.
This wouldn't necessarily be a problem (Ferrari has done just fine with niche luxury cars), except the big automakers need ultra efficient vehicles entering their fleets in high volume to increase their average fuel economy.
"If there is a month where I have to sell 40 percent of my volume as fleet, I will," he said.
Multiple traffic counting points were also established to concurrently collect data on traffic volume and fleet composition on individual streets.
Concerning the environmental impact of the traffic flow during the selected observation period, some hypotheses about the change in the composition of vehicle fleet and the traffic volume are needed.
We finally conclude by providing additional results for potential what-if scenario for a changing fleet size and demand volume in Section 5.7.
27 Residential exposure to community noise (annual day-evening-night A-weighted equivalent continuous noise levels, Lden dB(A)) was estimated based on baseline residential addresses and surrounding transportation information including road width, speed limits, traffic volume and fleet composition.
Virtually all dealerships and fleet companies work on volume discounts.
