The objectives of Project E-23 are to follow vehicle conditions and emissions using remote-sensing measurements of on-road vehicles at selected sites to identify trends over a multi-year period, and use the information to estimate high exhaust emitter populations. Based on remote sensing measurements made at a single site in each of four cities, average fleet on-road tailpipe emissions have declined sharply from 1999 to 2006. CRC Project E-23 was created to observe changes in fleet on-road tailpipe emissions over time. separate cities. At each site, at least 20,000 remote sensing measurements were made during a week at the same time of the year for a number of years. A protocol was established and followed to set the measurement procedures, site and instrument descriptions, quality control procedures, and data reporting. CRC E-23 reports were issued for each year of measurement in each of the cities. The reports list the methodology and calculations, the database definitions, quality control procedures, and an analysis of results.


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    Remote Sensing Measurements of On-Road Emissions in Five European Cities

    Mercer, A. / McArragher, S. / Coordinating Research Council | British Library Conference Proceedings | 1997


    Congestion and On-Road Vehicle Emissions as Measured by Remote Sensing

    Pokharel, S. S. / Coordinating Research Council | British Library Conference Proceedings | 2002



    Observed On-Road Vehicle Fleet Differences and Their Effect on Emissions

    Younglove, T. / Coordinating Research Council | British Library Conference Proceedings | 2002


    Remote Sensing and Vehicle Emissions Variability

    Bishop, G. / Coordinating Research Council | British Library Conference Proceedings | 1994