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Harmful conditions can develop when cyclists are overtaken by automobiles. How threatened or protected cyclists really feel throughout an overtaking maneuver will depend on the kind of highway. They anticipate to be safer on roads with a pace restrict of 30 kilometers per hour (kph), in addition to on dwelling streets, bike streets, and roads with cycle lanes. If automobiles are allowed to drive sooner and infrastructure for cyclists is absent, cyclists anticipate extra harmful overtaking maneuvers. However in actuality, the passing distance of automobiles are literally opposite to this subjective impression of security. On streets with diminished pace limits or bikeways, cyclists are handed with simply as little and even much less house than on different roads. That is proven in a research carried out by Dr. Rul von Stülpnagel of the Institute of Psychology and Nils Riach and Rafael Hologa of the Institute of Environmental Social Science and Geography of the College of Freiburg. The outcomes have been revealed within the specialist journal Transportation Analysis Half F: Psychology and Behaviour.

Nearer overtaking margins than anticipated

The College of Freiburg researchers confirmed cyclists photographs of various kinds of city roads and allow them to estimate how protected overtaking maneuvers have been there. The researchers additionally used a sensor mounted on a bicycle to measure the precise passing distance in the identical areas. Their consequence: Solely 30% of passing automobiles complied with the legally prescribed minimal margin of 1.5 meters.

On a few of the roads subjectively perceived to be protected, the overtaking margins have been in some circumstances particularly small. “Particularly on roads with calmed visitors and on cycle lanes, bicyclists are handed extra carefully than they themselves anticipate,” says von Stülpnagel. Among the many causes for this may very well be that such roads are sometimes tight, however slender cycle lanes give the impression that drivers could solely use the house within the highway as much as the road marking the lane, even when they aren’t sustaining the authorized minimal of house when overtaking.

Cycle lanes are however wise

“Our outcomes do not communicate in opposition to pace limits and cycle lanes,” emphasizes von Stülpnagel. He continues, low speeds can cut back the results of accidents, and infrastructure for cyclists makes them extra seen in city visitors. This may be a proof for the subjectively perceived feeling of higher security on the a part of cyclists. However, it was essential to acknowledge that this sense of security ceaselessly didn’t correspond to the objectively measured margins throughout overtaking.

Higher to construct vast cycle lanes—or bodily separations

Von Stülpnagel explains that the outcomes might have an affect on visitors planning sooner or later. “Every time it is potential, bicycle lanes must be made so vast, that automobiles are capable of keep the minimal passing distance of 1.5 meters with out having to swerve from their path,” he says. Constructive results, provides von Stülpnagel, may very well be anticipated significantly when bicycle paths are bodily separated from the roads. “Our research outcomes present that such structural boundaries can improve the notion of security in addition to the passing distances,” he concludes.


Analysis will assist city planners prioritize bike lanes


Extra data:
Rul von Stülpnagel et al, Automobiles overtaking cyclists on totally different city highway varieties—Expectations about passing security should not aligned with noticed passing distances, Transportation Analysis Half F: Site visitors Psychology and Behaviour (2022). DOI: 10.1016/j.trf.2022.07.005

Offered by
Albert Ludwigs College of Freiburg


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New research on expectations and actuality of protected overtaking maneuvers in bicycle visitors (2022, August 3)
retrieved 3 August 2022
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