Abstract
The use of assistance systems aimed at reducing road fatalities is spreading, especially for car drivers, but less effort has been devoted to developing and testing similar systems for powered two-wheelers (PTWs). Considering that over speeding represents one of the main causal factors in road crashes and that riders are more vulnerable than drivers, in the present study we investigated the effectiveness of an assistance system which signaled speed limit violations during a simulated moped-driving task, in optimal and poor visibility conditions. Participants performed four conditions of simulated riding: one baseline condition without Feedback, one Fog condition in which visual feedback was provided so as to indicate to the participants when a speed limit (lower than that indicated by the traffic signals) was exceeded, and two post-Feedback conditions with and without Fog, respectively, in which no feedback was delivered. Results showed that participants make fewer speeding violations when the feedback is not provided, after 1 month, and regardless of the visibility condition. Finally, the feedback has been proven effective in reducing speed violations in participants with an aggressive riding style, as measured in the baseline session.
Highlights
A lot of attention is being paid to the causal role of risky driving behaviors in road crash occurrence, in the context of the efforts dedicated, in the last decades, to the reduction of road fatalities worldwide
Considering that over speeding represents one of the main causal factors in road crashes and that riders are more vulnerable than drivers, in the present study we investigated the effectiveness of an assistance system which signaled speed limit violations during a simulated moped-driving task, in optimal and poor visibility conditions
In all the countries involved in the Road Safety Annual Report 2019 (OECD/ITF, 2019), speeding seemed to contribute from 15% up to 35% of fatal crashes in 2018
Summary
A lot of attention is being paid to the causal role of risky driving behaviors in road crash occurrence, in the context of the efforts dedicated, in the last decades, to the reduction of road fatalities worldwide. Over speeding remains one of the main causes (among others) of road accidents. In all the countries involved in the Road Safety Annual Report 2019 (OECD/ITF, 2019), speeding seemed to contribute from 15% up to 35% of fatal crashes in 2018. In Italy, according to the Italian National Institute of Statistics, speeding caused 10.2% of road accidents in 2018 and over speeding turned out to be the main contributing factor in 10.3% of injury crashes and 18.5% of fatal crashes in 2017 (OECD/ITF, 2019-Italy). Speed choice is one of the aspects of driving behavior under the control of drivers, and over speeding represents a risky behavior that can be influenced in several ways. Lucidi et al (2019a) recommended to focus educational interventions on drivers’ attitudes toward traffic safety, which can be modified to a greater extent than other aspects that have
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