Opus' remote sensing devices have helped to expose on-road NOx emissions from trucks equipped with defeat devices.
Because remote sensing tests vehicles as they drive by, it can collect millions of test records in a short space of time. This bank of data can form a valuable snapshot of the vehicle fleet in a country, state or province. Government agencies can use this data to assess the performance of their emission testing program, or profile the fleet to see which areas or vehicle makes are the most polluting.
Remote sensing can be used to evaluate performance by:
- Developing a snapshot of the vehicle fleet at the start of a program and repeating later to see how far emissions have reduced.
- Comparing remote sensing results with emissions of vehicles from areas that don't have an emission testing program.
- Assessing the impact of vehicles from outside the emission testing region - for example, driven by commuters or tourists - on air quality within a program area.
Remote sensing data can produce valuable insights, such as:
- Profiling the emission performance of the entire fleet by make, model and year or production
- Identifying vehicle makes and models that emit excessively due to defeat devices or poor design.
- Comparing computer emission models to real-world emission data.
- Comparing emissions by county or region.
These services can be provided as part of a Clean Screen program at little or no extra cost. Find out more