Quantification of the Effect of ITS on CO₂ Emissions from Road Transportation

The paper presents an overview of the final results of the 7FP ICT-EMISSIONS project that developed and validated a novel methodology and tool set to evaluate the impact of information and communications technology (ICT)-related transport measures on mobility and CO₂ emissions of vehicle fleets under real-world conditions. The methodology combines traffic and emission modelling at micro and macro scales. The integration of these scales is an important feature because a measure to influence the behaviour of single vehicles may have an impact on the whole network, while traffic management at the network level may influence the behaviour of the single vehicles. The paper presents results of a number of intelligent transportation systems (ITS) including Variable Speed Limit (VSL), Green Navigation (GN), Urban Traffic Control (UTC), Ecodriving and Adaptive Cruise Control Systems (ACC). These measures have been tested for concrete application cases implemented in the cities of Turin, Madrid and Rome. Starting point was real-world data collected by means of floating cars. The investigations have taken into account different penetration rates of ICT measures, as well as different traffic conditions (e.g. free flow, congested). Each case has been modelled for the current and at least on future fleet composition. The results indicate that ITS are overall able to contribute to CO₂ emissions reduction by several percent points; the effects, nevertheless, are different depending on local conditions. The CO₂ benefit is also found to be constrained by the penetration rates of the on-road ITS equipped vehicles: as this share increases a maximum is reached at up to 50% penetration rate and under non-congested conditions.


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  • Accession Number: 01610466
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jun 29 2016 8:34AM