Re-Evaluating the Risk of Using Higher-Skid-Resistance Aggregates

Aggregate with higher skid resistance is used in many countries around the world to improve road safety. It has been tested for skid resistance in the laboratory and measured in service for many years. Certain rock types and asphalt mixes offer more skid resistance. The laboratory test methods have...

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Main Authors: David Woodward, Phillip Millar, Paul Sargent
Format: Article
Language:English
Published: MDPI AG 2023-07-01
Series:Engineering Proceedings
Subjects:
Online Access:https://www.mdpi.com/2673-4591/36/1/37
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author David Woodward
Phillip Millar
Paul Sargent
author_facet David Woodward
Phillip Millar
Paul Sargent
author_sort David Woodward
collection DOAJ
description Aggregate with higher skid resistance is used in many countries around the world to improve road safety. It has been tested for skid resistance in the laboratory and measured in service for many years. Certain rock types and asphalt mixes offer more skid resistance. The laboratory test methods have not changed for many years. Road surfaces achieve a state of in-service equilibrium depending on many factors, and roads are now experiencing additional changes due to issues ranging from greater use of electric vehicles to climate change in its many forms. This paper considers whether the previous methods are still able to offer reliable prediction. The paper re-evaluates research performed in the period 1990 to 2010 to consider whether the testing of road surface aggregate needs to be updated for the early 21st century. The authors believe this paper is significant for all countries to optimize the performance of their road networks in line with changes in service conditions.
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spelling doaj.art-5a84adf2b8614eb29e85ef006e7550e32024-03-27T13:36:31ZengMDPI AGEngineering Proceedings2673-45912023-07-013613710.3390/engproc2023036037Re-Evaluating the Risk of Using Higher-Skid-Resistance AggregatesDavid Woodward0Phillip Millar1Paul Sargent2Belfast School of Architecture and Built Environment, Ulster University, Belfast BT15 1AP, UKBelfast School of Architecture and Built Environment, Ulster University, Belfast BT15 1AP, UKBelfast School of Architecture and Built Environment, Ulster University, Belfast BT15 1AP, UKAggregate with higher skid resistance is used in many countries around the world to improve road safety. It has been tested for skid resistance in the laboratory and measured in service for many years. Certain rock types and asphalt mixes offer more skid resistance. The laboratory test methods have not changed for many years. Road surfaces achieve a state of in-service equilibrium depending on many factors, and roads are now experiencing additional changes due to issues ranging from greater use of electric vehicles to climate change in its many forms. This paper considers whether the previous methods are still able to offer reliable prediction. The paper re-evaluates research performed in the period 1990 to 2010 to consider whether the testing of road surface aggregate needs to be updated for the early 21st century. The authors believe this paper is significant for all countries to optimize the performance of their road networks in line with changes in service conditions.https://www.mdpi.com/2673-4591/36/1/37re-evaluationaggregateskid resistanceperformance
spellingShingle David Woodward
Phillip Millar
Paul Sargent
Re-Evaluating the Risk of Using Higher-Skid-Resistance Aggregates
Engineering Proceedings
re-evaluation
aggregate
skid resistance
performance
title Re-Evaluating the Risk of Using Higher-Skid-Resistance Aggregates
title_full Re-Evaluating the Risk of Using Higher-Skid-Resistance Aggregates
title_fullStr Re-Evaluating the Risk of Using Higher-Skid-Resistance Aggregates
title_full_unstemmed Re-Evaluating the Risk of Using Higher-Skid-Resistance Aggregates
title_short Re-Evaluating the Risk of Using Higher-Skid-Resistance Aggregates
title_sort re evaluating the risk of using higher skid resistance aggregates
topic re-evaluation
aggregate
skid resistance
performance
url https://www.mdpi.com/2673-4591/36/1/37
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