1 / 10

RAPID TRAFFIC EMISSIONS MEASUREMENT TECHNOLOGY Markku Känsäkoski, Customer Manager

RAPID TRAFFIC EMISSIONS MEASUREMENT TECHNOLOGY Markku Känsäkoski, Customer Manager. 10 June 2008 VTT Press Conference Via Nordica. Why to measure vehicle emissions?. Air pollution In Finland traffic generates about 55% of total emissions of carbon monoxide and nitrogen oxides.

yehuda
Download Presentation

RAPID TRAFFIC EMISSIONS MEASUREMENT TECHNOLOGY Markku Känsäkoski, Customer Manager

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. RAPID TRAFFIC EMISSIONS MEASUREMENT TECHNOLOGYMarkku Känsäkoski, Customer Manager 10 June 2008 VTT Press Conference Via Nordica

  2. Why to measure vehicle emissions? • Air pollution • In Finland traffic generates about 55% of total emissions of carbon monoxide and nitrogen oxides. • In the United States, cars, trucks, and off-road vehicles are currently estimated to be responsible for about 40- 50% of the hydrocarbon or volatile organic compounds emissions, 50% of the NOx emissions, and 80-90% of the Carbon Monoxide emissions.

  3. Is the air pollution such a big problem? • Greenhouse effect • "Air pollution caused 6% of total mortality or more than 40,000 attributable cases per year. About half of all mortality caused by air pollution was attributed to motorised traffic, accounting also for: more than 25,000 new cases of chronic bronchitis (adults); more than 290,000 episodes of bronchitis (children); more than 0,5 million asthma attacks; and more than 16 million person-days of restricted activities." • Künzli et. al.,Lancet 2000; 356: 795-801 Data - 1996, Switzerland, Austria, France

  4. How to measure vehicle emissions efficiently? Currently vehicle emissions are measured annually (or even less frequently – trend to decrease more): • I/M programs (USA) • MOT (UK, Europe) • Current methods are not reliable, e.g. idle test results doesn't correlate well with dynamometer results (I/M) • or facilities are expensive (Dynamometer). • On-road remote measurement is a cost efficient way to measure huge amounts of vehicles frequently.

  5. Developed measurement system • Fundamental measurement channels: • Carbon Dioxide (CO2), Reference Channel • Species specific measurement channels: • Carbon Monoxide (CO), Nitric Oxide (NO), Total Hydrocarbons (THC, HC), Non-methane Hydrocarbons (NMHC) • Notes: Additional capability to identify gross particulate emission through an opacity (black smoke) test is provided as part of the functioning of the reference channel. • Ancillary equipment may be used in association with RSD measurements: • Automated Number-plate Reading (ANPR) • Pneumatic tube (temporary) or Induction loop (permanent) for traffic counting and speed measurement • Video camera for vehicle identification and trials records

  6. Performance • Differentiates Diesel motor vehicles from Petrol (Gasoline) motor vehicles • Measures all types of motor vehicles (from motorcycles to trucks) • Detects gross polluters from flowing traffic • The device measured emissions from flowing traffic in excess of 20 000 cars per day (A vehicle in every 4 seconds!) • During street trials 10% of the vehicles caused in excess of 90% of the toxic carbon monoxide emissions

  7. Results from Miracles-project • Results indicate that regular feedback to vehicle owners on their emissions would be welcome: • 80% agreed with the monitoring of vehicles to reduce pollution; • 73% wished to be informed of the vehicle’s emissions; • 80% would have their vehicle’s engine checked if Variable Message Sign (VMS) indicated the vehicle’s emissions were POOR; • 76% would be interested in a subsidy if their vehicle was suspected of having an emissions fault; • 72% agreed that suspected high polluters should be encouraged to use Park and Ride; • 13-23% indicated that they would divert to Park and Ride if VMS indicated their vehicle’s emissions were POOR, and; • 60% would make use of a web-based emissions checking service once a month or less For more information on this demonstrator: Andy Wren, Hampshire County Council, Winchester. Tel: (+44) (0)1962 847500, e-mail: andy.wren@hants.gov.uk, www.winchestermiracles.org

  8. Why to measure vehicle emissions remotely? • Currently there are no alternative methods to get data from real driving conditions from real traffic. • Tampering of modern vehicles is easy, e.g., performance chips • Vehicle taxes? • Current dynamometer driving cycles are fixed, there is a need to get more information outside those fixed loads (e.g. high acceleration, high speed) • Vehicle emission models/measurements/approvals are based on small number of vehicles (how representative?)

  9. Applications • Roadside targetting • Gross polluter • Clean sweep • Impact assessment • Programme evaluation • On board diagnostics verification • Research (roadside) • Research (static) • Air quality management • Public information

More Related