The main purpose of this project is to verify remote sensing technology. Overall speaking, the project has made a great step forward towards the localization of the remote sensing technology established during the past few years in Taiwan. The project has verified remote sensing as capable of detecting high emitters and introduced new concept for remote sensing data analysis. The achievements in this project are summarized as follows: (1) For the remote sensing instrument accuracy test, the project has built a methodology for the accuracy test and proved it to be technically feasible, easy to operate, and suitable for the condition in our nation. (2) The gasoline vehicle remote sensing test completed 73,548 measurements to obtain 53,857 valid data, and introduced vehicle specific power for remote sensing drive pattern analysis. The analysis indicated the highway electronic toll collection lanes are the best for remote sensing. The remote sensing site pullover test and dynamometer drive pattern test showed poor relationship between remote sensing and idle tests and suggested future remote sensing high emitters should be tested on a dynamometer. It was also shown from the tests that on-road vehicle CO emission to be more stable than HC emission and suggested to raise the HC value for screening to avoid false failure. (3) The diesel vehicle tests showed remote sensing has good potential in replacing visual smoke inspection. (4) The motorcycle tests showed current instrument design unsuitable for motorcycles. (5) Studies of the U.S. federal and state laws and regulations showed valuable information to learn from the U.S. government structural systems and the conservativeness in high emitters screening. (6) The remote sensing data analysis indicated about 5% vehicles are high emitters and old vehicles and light duty trucks are major polluters. The study also suggested to continue the development for remote sensing emission inventory estimation. (7) Evaluation of current remote sensing screening standards took the 306 pairs of remote sensing and roadside pullover test data for scenario analysis to obtain results for decision. (8) The study also completed the draft version for motor vehicle remote sensing technical guideline with 8 chapters and 16 articles for continued discussions in the future. The project finally suggested future remote sensing development according to the principles of better accuracy and higher coverage. The future 2, 5, and 10 years were suggested for future short, medium and long term planning target year. It is suggested that the short term goal to be a continued effort to improve remote sensing accuracy, with the medium term goal to transfer remote sensing implementation to local bureaus and in the long term to make remote sensing a routine year round control measure. As regards to the peripheral facility planning, it is suggested to build formal in-use vehicle non-periodic emissions inspection stations and develop the ASM/OBD test procedure. The short term goal is to verify the ASM/OBD technology, with the medium goal to build preliminary ASM/OBD test stations and in the long term to push privatization of motor vehicle emissions inspection.

remote sensing, drive pattern, vehicle specific power, accuracy