as part of a study of aspects of normal road-building practice in tropical countries, the states of compaction achieved in road bases and earthworks were investigated at ten road construction schemes ...

Many of the concrete road surfacings in the UK have been in service for over 30 years and are starting to suffer from reductions in skid resistance and texture. This report explores the state of the ...

This report describes the road trials of High Modulus Base (HMB), a high stiffness roadbase macadam manufactured to the standard UK composition for dense bitumen macadam (DBM) using a binder with a ...

The aim of this project was to assist the Highways Agency in re-assessing current designs and specifications for continuously reinforced concrete pavement (CRCP) in the light of performance data from ...

The Interest group brought together experts and clients to engage in meaningful discussions about the future of collision investigation. It was a day filled with insightful presentations, ...

Detailed quantitative interviews were carried out with 650 people aged 16 or over, and a smaller number of key questions on cycling were included in an 'omnibus' survey with a nationally ...

The skidding resistance standard for trunk roads in England is contained in HD28 in the Design Manual for Roads and Bridges. It requires an Investigatory Level of skidding resistance to be assigned ...

This guide provides engineers with methods of repairing road haunches by re-using road materials or industrial by-products. The guidance given is based on the in-service performance of re-usable ...

This study aimed to assess the impact of interacting with two infotainment systems, Android Auto and Apple CarPlay, on four driver performance measures: reaction time, driving behaviour, eyes-off road ...

In England, Local Authorities provide network-level Road Condition Monitoring (RCM) data to the Department for Transport each year, so that the DfT can publish annual official statistics for road ...

RAC Foundation (2008) reported the results of a survey of 2,000+ users of Facebook, showing that 45% of UK drivers engage in texting whilst driving. The RAC Foundation commissioned TRL to study the ...

Road surface friction on the Strategic Road Network (SRN) is managed through the requirement to provide skid resistance and texture depth. The requirements have been in place since the 1980s and were ...