01150938

Component

https://doi.org/10.3141/2155-08

http://scholar.google.com...+Ong&publication_year=2010

Grooving of pavement surface and tire tread has been accepted as good practice to enhance road travel safety against wet weather skidding and hydroplaning. Many guidelines on this practice have been derived from findings of experimental studies and field experience. However, theoretical studies to provide insights into the factors and mechanisms involved are lacking. A theoretically derived analytical simulation model was used to study the relative effectiveness of pavement grooving and tire grooving in reducing vehicle hydroplaning risk. Three basic grooving configurations were considered: ungrooved, longitudinally grooved, and transversely grooved. There are nine different combinations of grooving configurations. To form a common basis for comparison, constant values of groove width, groove spacing, and water-film thickness were considered in the computation of hydroplaning speeds for different groove depths. Transverse grooves performed better than longitudinal grooves in raising hydroplaning speed (i.e., reducing hydroplaning risk), and pavement grooving was a more effective measure than tire tread grooving in reducing hydroplaning risk. Further detailed examinations of the results were conducted to study the practical implications of the findings. For longitudinal grooving, which is commonly adopted in highways, pavement and tire grooving are of equal importance in their contributions toward reducing hydroplaning risk. In the case of runways where transverse grooving is the standard practice, pavement grooving is the dominating component in guarding against hydroplaning.

01170024

10-1086

English

pp 73-81

2010

Transportation Research Record: Journal of the Transportation Research Board

9780309142854

Print

Figures (5) ; References (20) ; Tables (8)

Crash risk forecasting; Hydroplaning; Pavement grooving; Rolling contact; Skid resistance; Traffic safety; Wet weather

Design; Highways; Pavements; Safety and Human Factors; I22: Design of Pavements, Railways and Guideways; I23: Properties of Road Surfaces; I82: Accidents and Transport Infrastructure

PRP, TRIS, TRB, ATRI

Jan 25 2010 10:29AM

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