air quality assessment & management
Reference and User Manual
A fleet composition OBJECTS consistes of the relative share (number of vehicles) for any user defined set of classes, for example:
The fleet composition object consistes of the standard object header and META DATA, and a table of relative shares (in % of vehicles) that should sum to 100%
To edit a fleet composition, click on the percentage string of the desired vehicle class and edit with the edit dialog. Saving the new value will redraw the tabke, and update the pie chart, indicating any undefined (or overdefined) fraction.
Alternative fleet compositions can be selected at the level of emission scenarios.
The fleet composition is global, but several fleet compositions can be defined to be used in alternative scenarios;
To estimate emission from traffic, several components are required:
Please note that the vehicl casses selected must match the classes available in the traffic emission factor data base for the correct estimation of traffic generated emissions.
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