Guidance note about on - road vehicle emissions remote sensing
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منابع مشابه
On-Road Emissions in Asia Measured by Remote Sensing
On-road emissions are precisely the emissions which are impacting the air quality and which need to be controlled if air quality improvements are desired. Remote sensing measures mass emissions of CO, HC, NO and smoke per kg (or per L) of fuel burned. On-road emissions are not certification emissions for new vehicles, although new vehicles measured on-road most often provide remote sensing read...
متن کاملEvaluating vehicle inspection/maintenance programs using on-road emissions data. The Atlanta Reference Method.
On-road remote sensing data is an increasingly popular source of evaluation information for vehicle inspection/maintenance (I/M) programs. This article conducts one such remote sensing data evaluation for the Atlanta, Georgia, I/M program. The reference method involves comparing emissions differences in I/M and non-I/M fleet vehicles with those predicted by a regulatory computer model. Assuming...
متن کاملCharacterization of On-Road Vehicle NO Emissions by a TILDAS Remote Sensor.
A tunable infrared laser differential absorption spectrometer (TILDAS) was used to remotely sense the nitric oxide (NO) emissions from 1,473 on-road vehicles. The real-world measurement precision of this instrument in the limit of low NO concentration is 5 ppm of the vehicle exhaust, which corresponds to a 3o detection limit of 15 ppm. Our analysis of the distribution of negative concentration ...
متن کاملRemote Sensing Device High Emitter Identification with Confirmatory Roadside Inspection
INTRODUCTION Several uses of remote sensing devices (RSDs) have been proposed, such as on-road identification of high emitting vehicles and monitoring on-road vehicle emissions for program evaluation purposes. The Bureau of Automotive Repair (BAR) conducted a study to evaluate the ability of RSDs to consistently identify vehicles with excessive emissions and correctly classify the vehicles as f...
متن کاملA tunable diode laser system for the remote sensing of on-road vehicle emissions
A tunable infrared laser differential absorption spectrometer (TILDAS) has been developed to measure airpollutant emission from on-road motor vehicles. The system uses a monostatic source–detector platform and a retroreflector. It has been shown to be able to measure the emissions from individual vehicles at highway speeds. Excellent detection sensitivity is obtained with measurement precision ...
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