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Outcome evaluation of i-DREAMS (H2020 Project) interventions: Multi-country comparison of driving behaviour

conference contribution
posted on 2024-05-16, 14:31 authored by Muhammad Adnan, Kris Brijs, Muhammad Wisal Khattak, Laurie Brown, Rachel TalbotRachel Talbot, Christelle Al Haddad, Constantinos Antoniou, Virginia Petraki, George Yannis, Tom Brijs

The i-DREAMS project introduced the concept of a 'Safety Tolerance Zone', i.e., a context-aware safety envelope designed to assist drivers in main-taining self-regulated control within the boundaries of safe operations. Using an ecosystem of sensors, i-DREAMS technology continuously monitors factors de-termining driving task complexity and available coping capacity and calculates risk levels in real-time. Based on this information, both real-time and post-trip interventions are tailored to keep drivers from getting too close to the boundaries of unsafe driving. Real-time interventions are provided via in-vehicle display, while post-trip interventions are delivered via a smartphone app (and web-dash-board) with provisions for gamification. This study focuses on effectiveness (i.e. outcome evaluation) of real-time and post-trip interventions that involves 4 phases including the base line measurement phase.

The paper presents a comparative analysis using the data collected (on-road field trails and questionnaire data) from Car-drivers from three countries: Bel-gium(n=48), UK(n=49) and Germany(n=25). Overall, car drivers showed a re-duction in events per 100km after exposure to the i-DREAMS technology. So, there was an improved safety outcome. However, differences were found be-tween the countries analysed. Highest number of events per 100km were noted for UK drivers with the reduction pattern consistent across 4 phases. Performance of interventions was found more promising for ‘road sharing’ type of events and ‘speeding’ events for Belgian and German drivers respectively. Driver level anal-ysis revealed that two-third of drivers in each country showed consistent decrease in events/100km.



  • Design and Creative Arts


  • Design


Transport Research Arena (TRA) 2024




  • AM (Accepted Manuscript)

Publisher statement

This version of the contribution has been accepted for publication, after peer review (when applicable) but is not the Version of Record and does not reflect post-acceptance improvements, or any corrections. The Version of Record is available online at: https://doi.org/10.1007/xxxxxx. Use of this Accepted Version is subject to the publisher’s Accepted Manuscript terms of use https://www.springernature.com/gp/open-research/policies/accepted-manuscript-terms

Acceptance date


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  • en


Dublin, Ireland

Event dates

15th April 2024 - 16th May 2024


Dr Rachel Talbot. Deposit date: 1 May 2024

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