详情

原文传递 Developing Improved Vehicle Population Inputs for the 2017 National Emissions Inventory.

题名：	Developing Improved Vehicle Population Inputs for the 2017 National Emissions Inventory.
关键词：	Gross Vehicle Weight Rating (GVWR), Vehicle-Miles Travelled (VMT), National Emissions Inventory (NEI), MOVES, Department of Motor Vehicles (DMV)
摘要：	This work, CRC project A-115, prepares new MOVES inputs from 2017 vehicle registration data for use in the 2017 NEI and 2016 v1 modeling platforms. The registration data for this effort was provided by data firm IHS Markit (formerly Polk Automotive). A major goal of the new 2017 registration data effort was to incorporate data-driven adjustments to reduce IHS Markit鈥檚 possible overestimation of older populations of light duty vehicles. The products coming out of this study include three nationwide, county-level data tables formatted for use in MOVES and an additional summary that includes the gross vehicle weight rating (GVWR) category. These outputs were generated for an unadjusted baseline and several population-reduction scenarios described in the report. The report begins with an overview of how vehicle registration data are used in on-road modeling and the results of the recent 2014 VIN analysis. After the overview, Section 3.0 describes the methodology to transform the 2017 data into MOVES inputs and estimate 2016 population and 2016 age distribution. Section 4.0 discusses the results and shows the impacts of the population reduction scenarios on average age and population totals. Section 5.0 finishes with a brief summary and recommendations.
报告类型：	科技报告