tree risk assessment

Regional Data

Licensed Users can email relevant documents or sources of data to and we will upload or link them to the ‘For QTRA Users’ area of the website, for access by other users. 

In the ‘Regional Data’ section we can upload data and links that are specific to your region such as national traffic statistics,  or records of accident numbers.  There is also a ‘Case Law’ section to which, subject to copyright permissions, we can upload publications such as research papers, court judgments or external links that might be useful to QTRA users. 

Depending on the level of use, we may restructure this area of the website to provide sub-pages for specific topics and data types.

tree risk assessment

United Kingdom

  • Vehicle speeds on non-built-up roads by road type and vehicle type: Great Britain: 2008
  • Vehicle speeds on built-up roads by speed limit and vehicle type: Great Britain: 2008
  • Journey time reliability measure1 on the Strategic Road Network: England

Regional Transport Statistics 2007 (UK)

Traffic flow rates by road class and region are detailed on Table 4.2 page 41.


Register your interest in qtra

Register your interest in QTRA training and we will send you an Introductory Information Pack and keep you informed of developments and training events.  When you have registered interest, you can select an event from our Training Calendar and make an online booking.


Our extensive global training courses and workshops will help you become an expert in tree safety and management. Attend one of our training courses to become a registered user of the system.


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