A REVIEW OF AVAILABLE ROAD TRAFFIC EMISSION MODELS

摘要: TRL was commissioned by the DETR to assess suitability of models and databases estimate traffic emissions through management schemes develop a methodology update heavy-duty vehicle emission factors for use in an appropriate model. A wide variety were reviewed assessed, these included those which are used estimating over entire region that from specific types vehicles using pre-defined speed cycle road layout. few identified may be suitable heavy levels calming schemes, but would need supplementing with 'representative' data before they could used. In separate project range will instrumented measure key engine parameters whilst driven selection schemes. It is proposed load measurements then reproduced on chassis or dynamometer engines equivalent size power rating common use. this manner produced passing can directly estimated as database prediction models. (A)