A velocity and payload dependent emission model for heavy-duty road freight transportation
article
The paper develops a forecasting model of emissions from traffic flows embracing the
dynamics of driving behavior due to variations in payload. To measure of emissions at
the level of individual vehicles under varying payloads a portable emission measurement
system is used. This paper reports on a model based on data at the level of individual vehicles
for a representative road trajectory. The model aggregates the data to the level of a
homogeneous flow dependent of velocity and specific power, which is dependent on payload
weight. We find a lean specification for the model that provides emission factors for
CO2, NOx, HC, CO, and NO2. The results indicate that, in comparison with earlier models,
NOx emissions in particular tend to be underestimated
dynamics of driving behavior due to variations in payload. To measure of emissions at
the level of individual vehicles under varying payloads a portable emission measurement
system is used. This paper reports on a model based on data at the level of individual vehicles
for a representative road trajectory. The model aggregates the data to the level of a
homogeneous flow dependent of velocity and specific power, which is dependent on payload
weight. We find a lean specification for the model that provides emission factors for
CO2, NOx, HC, CO, and NO2. The results indicate that, in comparison with earlier models,
NOx emissions in particular tend to be underestimated
TNO Identifier
462605
Source
Transportation Research Part D, 17(Augustus), pp. 487-491.
Pages
487-491
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