The objectives of WP1 are to establish the relation between driving behaviour and emissions for a wide variety of vehicle models and pollutants. This includes the effect of ambient conditions, cold start, payload.  Assess the types of avoidable and observable malfunctions which lead to high emissions, which can be solved with simple maintenance. Link these cases to OBD fault codes, or the absence thereof. Establish if periodic inspection detects such malfunctions and tampering.  Provide simple means of detecting malfunctions and tampering, which can be proposed as augmentation of periodic inspections. Establish what form of vehicle of vehicle adaptions, such as retrofit solutions and software updates, will improve the emission performance of what engine technologies, including NonRoad Mobile Machinery. 

Effective user interventions require advice in the form of emission reduction options that are tailored to the specific vehicle technology and vehicle use. In order to achieve this detailed knowledge is needed of pollutant emissions for different vehicle types and the underlying dependencies on vehicle use (driving, ageing/maintenance, tampering, etc.).  

Vehicle emission maps will be based on the existing, unique and extensive collections of data and expert knowledge of the uCARe consortium partners. Assessing the data might require revisiting old test results and studies, and some additional testing (like OBD monitoring, utilising existing vehicle sensors and remote sensing) to fill the gaps and to evaluate the developed vehicle emission maps. Since each partner is selected based on their state-of-art knowledge of specific emission aspects, analysis and reviews of available studies will be performed by data owners within the consortium. Data analysis per emission aspect will focus on the impact of user behaviour on pollutant emissions. The results of all emission aspects will provide input for the emission models that allow assessment of reduction measures (WP2).