Transport Research Laboratory

The Transport Research Laboratory (TRL) is an internationally recognised organisation providing research, consultancy, testing and certification for all aspects of transport.

Website: http://www.trl.co.uk/
Email: enquiries@trl.co.uk

Documents by this publisher

Series details	Title	Year	Status
Project Report PPR348	Review of literature on the nature of the impact of roadworks on traffic movement and delay	2008	Current
Project Report PPR362	Performance of impregnants	2009	Current
Project Report PPR376	Bridge deck waterproofing: non-U4 concrete finishes	2008	Current
Project Report PPR378	Measuring skid resistance without contact: 2007-2008 progress report	2008	Current
Project Report PPR380	Review of the class and quality of street lighting	2009	Current
Project Report PPR382	Review of the lighting requirement for traffic signs and bollards	2008	Current
Project Report PPR383	Guidance on the lighting requirement for traffic signs and bollards	2008	Current
Project Report PPR386	A charge structure for trenching in the highway	2009	Current
Project Report PPR388	SCANNER accredited surveys on local roads in England - accreditation, QA and audit testing - annual report 2007-08	2009	Current
Project Report PPR390	Developing a new method for measuring pavement layer thickness	2009	Current
Project Report PPR392	Precautionary salting trials on the M62 at Goole	2011	Current
Project Report PPR393	Measuring skid resistance without contact. 2008-2009 progress report	2009	Current
Project Report PPR395	Life cycle assessment of the use of solid waste materials in highway construction	2009	Current
Project Report PPR398	Route safety management and evaluation guidance	2009	Current
Project Report PPR406	Use of intelligent compaction technology	2009	Current
Project Report PPR412	Automated inspection of highway structures 2008/09	2009	Current
Project Report PPR417	Factors influencing energy performance of modern conservatories	2009	Current
Project Report PPR428	Emergency refuge area simulation study	2013	Current
Project Report PPR430	Through junction running simulation study	2013	Current
Project Report PPR431	Part time through junction running simulation study	2013	Current