Measurement of Road Surface Characteristics in Germany and its Potential

2016 ◽  
Author(s):  
Tanja Altemeier ◽  
Ulrike Stoeckert
Keyword(s):  
Surface Characteristics ◽  
Road Surface

Effect of Polymer, Road Surface, and Driving Conditions on Wear Surface Characteristics of Tire Treads

1973 ◽  
Vol 1 (4) ◽  
pp. 354-362 ◽  
Author(s):  
F. R. Martin ◽  
P. H. Biddison
Keyword(s):  
Wear Surface ◽  
Surface Characteristics ◽  
Road Surface ◽  
The Other ◽  
Mechanical Degradation ◽  
Textured Surface ◽  
Test Track ◽  
Driving Conditions ◽  
Styrene Butadiene ◽  
Cylindrical Particles

Abstract Treads made with emulsion styrene-butadiene copolymer (SBR), solution SBR, polybutadiene (BR), and a 60/40 emulsion SBR/BR mixture were built as four-way tread sections on G78-15 belted bias tires, which were driven over both concrete and gravel-textured highways and on a small, circular, concrete test track. The tires were front mounted. When driven on concrete highway, all except the BR tread had either crumbled- or liquid-appearing surfaces, thought to have been formed by mechanical degradation or fatigue. When cornered on concrete, these materials formed small cylindrical particles or rolls. The BR tread had a smooth, granular-textured surface when driven on concrete highway and a ridge or sawtooth abrasion pattern when cornered on concrete. All the materials appeared rough and torn when run on gravel-textured highway. The differences in wear surface formed on BR tread and the other three are thought to be due primarily to the relatively high resilience of BR.

scholarly journals Relationship between tyre cavity noise and road surface characteristics on low-noise pavements

2021 ◽  
Vol 98 ◽  
pp. 102971
Author(s):  
Lara Ginevra Del Pizzo ◽  
Francesco Bianco ◽  
Antonino Moro ◽  
Gloria Schiaffino ◽  
Gaetano Licitra
Keyword(s):  
Surface Characteristics ◽  
Low Noise ◽  
Road Surface

Determination of road surface characteristics using photogrammetry technique

2018 ◽  
Author(s):  
Mirza Pozder ◽  
Sanjin Albinovic ◽  
Ammar Saric ◽  
Dzevad Krdzalic
Keyword(s):  
Surface Characteristics ◽  
Road Surface

First Paper: Tyre to Wet Road Friction at High Speeds

1965 ◽  
Vol 180 (1) ◽  
pp. 105-121 ◽  
Author(s):  
B. J. Allbert ◽  
J. C. Walker
Keyword(s):  
Contact Area ◽  
Scale Effects ◽  
Water Film ◽  
Surface Characteristics ◽  
Specific Pattern ◽  
Operating Conditions ◽  
Road Surface ◽  
Ground Contact ◽  
Water Displacement ◽  
Wide Range

The general problem of loss of tyre grip on wet road surfaces is discussed. The initial section of the paper covers a description of the testing techniques employed for the investigations reported. These include both road and indoor rig techniques developed to study limiting tyre braking and cornering properties under a wide range of operating conditions. The level of friction between a tyre and a wet road is primarily related to the ability to remove a water film from the ground contact area. The contact area is considered to be separated into three effective zones. Initially the ‘bulk’ of the film is displaced leaving a thin residual film to be penetrated at, or absorbed from, the interface before substantially dry contact can be established. The size of this dry area, at the rear of the contact zone, has an overriding control on the level of available friction and is dependent upon the time occupied in displacing the water film in the frontal zones. An increase in the peripheral speed of the tyre reduces the time available for water displacement and effectively shortens the area of actual ground contact. In the limiting condition the vertical load on the tyre becomes entirely supported on the water film and the condition of aquaplaning exists. The requirements for this condition to occur are briefly discussed. Tread pattern and road surface design are shown to exert a considerable influence upon the rate of water displacement from the contact area and hence upon the relative sizes of the water-supported zones. The forces developed in the dry zone at the rear of the ground contact are dependent upon the frictional characteristics of the tread material. A section of the paper considers the wide scale effects of tread pattern, tread material and road surface characteristics and discusses the nature of the interactions between these three variables. Some results of recent studies related to different types of tread pattern, specific pattern design features and the effect of tyre casing construction are included. Future potential development of the tyre contribution is reviewed.

Influence of Road Surface Characteristics on Tire–Road Noise for Thin-Layer Surfacings

2015 ◽  
Vol 141 (11) ◽  
pp. 04015024 ◽  
Author(s):  
Mingliang Li ◽  
Wim van Keulen ◽  
Halil Ceylan ◽  
Guoqi Tang ◽  
Martin van de Ven ◽  
...  
Keyword(s):  
Thin Layer ◽  
Surface Characteristics ◽  
Road Surface ◽  
Road Noise

Understanding the Role of Urban Road Surface Characteristics in influencing Stormwater Quality

2014 ◽  
Vol 28 (14) ◽  
pp. 5217-5229 ◽  
Author(s):  
An Liu ◽  
Dunzhu Li ◽  
Liang Liu ◽  
Yuntao Guan
Keyword(s):  
Surface Characteristics ◽  
Road Surface ◽  
Stormwater Quality ◽  
Urban Road

Road Texture Influence on Tire Rolling Resistance

2013 ◽  
Vol 597 ◽  
pp. 193-198 ◽  
Author(s):  
Stanislaw Taryma ◽  
Jerzy A. Ejsmont ◽  
Grzegorz Ronowski ◽  
Beata Swieczko-Zurek ◽  
Piotr Mioduszewski ◽  
...  
Keyword(s):  
Surface Texture ◽  
Rolling Resistance ◽  
Surface Characteristics ◽  
Road Surface ◽  
Operating Parameters ◽  
Road Vehicles ◽  
Passenger Car ◽  
Road Surfaces ◽  
Resistive Forces

Tire rolling resistance is one of the most important resistive forces acting on road vehicles. It depends on tire and surface characteristics as well as vehicle operating parameters. This paper deals with the influence of road surface texture on rolling resistance of passenger car tires. Results of road measurements performed on variety of road surfaces are presented.

Road Surface Characteristics and Skidding Resistance

1967 ◽  
Vol 40 (3) ◽  
pp. 684-693 ◽  
Author(s):  
Barbara E. Sabey
Keyword(s):  
Large Scale ◽  
High Pressures ◽  
Water Film ◽  
Surface Characteristics ◽  
Road Surface ◽  
Dominant Factor ◽  
Fine Scale ◽  
The Road ◽  
Drainage Channels ◽  
On The Road

Abstract When roads are wet their skidding resistance is reduced by the lubricating action of the film of water on the road. Under some circumstances this reduction may be substantial and the extent of it is largely dependent on the characteristics of the road surface. The first requirement for a good skidding resistance on wet roads is to facilitate break through of the water film in order to establish areas of dry contact between the road and the tire. Drainage channels, provided by the large scale texture of the road or by a pattern on the tire, assist in getting rid of the main bulk of water and are of increasing importance the higher the speed. The penetration of the remaining water film can be achieved only if there are sufficient fine scale sharp edges in the road on which high pressures (about 1000 lb/in2) are built up. The existence of such fine scale sharpness gives the surfaces a harsh feel. When vehicles are travelling at speeds of about 30 mph the fine scale texture of the road is the dominant factor determining skidding resistance. However, as they travel faster, it becomes increasingly difficult to penetrate the water film in the time available, however harsh the surface. At high speeds the requirements for a good skidding resistance are therefore different. The resistance to skidding arises to a larger extent from energy losses in the rubber of the tire as the surface of the tread is deformed by projections in the road surface and, although the physical properties of the tread rubber are important in this respect, it is essential to have sufficiently large and angular projections in the road surface to deform the tread, even though a water film may still be present on the surface. At higher speeds the coarseness of texture becomes as important as its harshness.

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