Study of the necessity of a speed monitoring display at the returning chicane on a freeway bypass

Pérez-Acebo, Heriberto; Baraibar, José Manuel; Arteagabeitia, Uxue; Isasa, Miren

doi:10.1080/15389588.2024.2346809

Traffic Injury Prevention

2024

DOI: 10.1080/15389588.2024.2346809

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Study of the necessity of a speed monitoring display at the returning chicane on a freeway bypass

Heriberto Pérez-Acebo,

José Manuel Baraibar,

Uxue Arteagabeitia

et al.

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2024

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Cited by 1 publication

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Analysis of the Skid Resistance Decrease in Bituminous Pavements in Dual-Carriageway Tunnels

Pérez-Acebo,

Isasa,

Gurrutxaga

et al. 2024

Buildings

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Unlike other pavement indices, the skid resistance, or friction, of bituminous pavements behaves differently. After the extension of a new layer, the friction increases as the bitumen film is removed and the aggregates are exposed. The aggregates are then polished by traffic, mainly by heavy vehicles, and the pavement reaches the seasonal phase, in which, if heavy traffic volume remains constant, the only variations are seasonal, with maximum values in winter and minimum values in summer. Nonetheless, in tunnels, as they are not exposed to climatic actions, the friction value is lower than outside. Therefore, the article evaluates the skid resistance decrease in tunnels compared to outdoor conditions. For this purpose, the skid resistance values in dual-carriageway tunnels in Gipuzkoa (Spain) were studied and compared with the values obtained 500 m before and after the tunnel. Overall, a 10% friction decrease was observed inside the tunnels. In winter, the decrease was 11%, while in summer it was 8%. In tunnels longer than 500 m, the decrease was greater (12%) than in tunnels shorter than 500 m (9% and 7%). This analysis contributes to a better knowledge of the available friction inside a tunnel and to the better management of road safety.

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Analysis of the Skid Resistance Decrease in Bituminous Pavements in Dual-Carriageway Tunnels

Pérez-Acebo,

Isasa,

Gurrutxaga

et al. 2024

Buildings

View full text Add to dashboard Cite

show abstract

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Study of the necessity of a speed monitoring display at the returning chicane on a freeway bypass

Cited by 1 publication

References 41 publications

Analysis of the Skid Resistance Decrease in Bituminous Pavements in Dual-Carriageway Tunnels

Analysis of the Skid Resistance Decrease in Bituminous Pavements in Dual-Carriageway Tunnels

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