Another approach consists of using the information supplied by a specific fleet of vehicles, rather than information coming from individual road users.
It was assumed that trucks from industrial countries are EURO 4 or 5 standard with cargo weight >32 t, except for distribution in Switzerland, which was modeled with a specific fleet average truck of >28 t.
But these city-specific fleets have yet to spread much beyond Paris, making global programs like Zipcar, Hertz on Demand and Car2go better bets for globetrotting travellers.
The impacts on air quality of introducing specific NGV fleets in Barcelona and Madrid Spainn) are assessed by means of the WRF-ARW/HERMES/CMAQ modeling system with high spatial temporal resolution (1 km2, 1 h).
"It's specific to each fleet.
Through system engineering process approach as research methodology, the optimization model is developed using linear programming method to assign specific type of fleet in the right time and destination based on the best route to meet maximum saving of cost where traffic jam factor is inserted as an independent variable.
"We evaluate lots of options across our fleet and haven't made any further announcements specific to the 777 fleet," Rahsaan Johnson, a spokesman for United Airlines, told the Guardian.
An inherent challenge in such fisheries is to provide both biologically and economically sustainable exploitation of individually fluctuating stocks and vessel- or fleet-specific quotas.
At urban level, although the difficulty of finding volunteers between private users, analogous experiments could be performed on vehicles belonging to a specific entity, such us public transportation fleets.
Because of that, the agency said, it is not recommending specific cleanup of sediments near the fleet.
Automakers are required to meet standards set by Congress in 1975 for their entire fleet of models, not specific ones.
