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Anticipating traffic when driving, correlated with safe driving, results in less braking and therefore better eco-driving behaviour

The more headway a driver keeps, the less he needs to brake because he has time to anticipate the traffic. Indeed, this figure shows that more headway corresponds with less braking, when comparing the points for one velocity range, e.g. 0-50 km/h. These results are retrieved for one driver after binning the data points per trip in three velocity ranges. Each point represents one trip. We also see that the higher the velocity, the lower the average time headway and the lower the braking energy. Since braking is the main source of energy loss in urban driving, it should be avoided whenever possible by anticipating the traffic situation.

Supporting Documents

D45.1 Potential of eco-driving

The deliverable offers the analysis of possibilities of the naturalistic driving data to provide more insight in different (normal) driving styles and eco-driving. Unique to UDRIVE is the augmentation of the velocity data with driving circumstances, like road type, speed limits, headway, and in-vehicle information. This allows placing the driver behaviour in context and distinguishing personal driving styles from behaviour forced by traffic conditions. To assess the fuel consumption and CO2 emission reduction potential associated with adopting an eco-driving style, it is crucial to separate personal driving style from infrastructure and from congestion while driving.

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