1. Trevor Collett
LGTAG Past President & Kier Asset Data Manager
Do we have the right metric for the condition of our highway infrastructure?
UK Highways 8th November 2018

2. Failed sign posts

3. Disparate asset types
Picture 3 – the black stuff – all other highway assets play a supporting role

4. Highways - simplified
Aggregate makes up the majority, by weight, of the highway asset

5. What is the condition of the UK’s highway network?
Poor
Just right
Too good
Tick a box:
A Silver Bullet
An Everlasting Light Bulb

6. Definitive condition data
Where would you go to get a report on the condition of our highway network?

7. AIA’s ALARM survey
The most staggering finding from this year’s ALARM survey has to be the sheer scale of local roads in England and Wales that need imminent repair. It’s unfathomable to think that you could drive almost around the world on the length of local authority roads that could fail if they are not fixed in the next 12 months – but that is the reality.
Introduction by Rick Green, Chairman, Asphalt Industry Alliance

8. Potholes

9. ALARM 2018 – page 12

10. NRMCS - National road condition indicator
103 pages
Road Conditions in England: 2007

11. Current DfT road condition report

12. Current DfT road condition report

13. DfT condition report – page 3
Other measures of condition also exist. The Asphalt Industry Alliance carry out the Alarm Survey and report on a measure of structural condition alongside other measures (see here). The RAC have also introduced a pothole index using their members’ breakdown data, and are using this as an ongoing measure of the state of the UK roads (see here).

14. NHT – Highway Condition
Highway Authority
Satisfaction
Portsmouth
53%
Sheffield
51%
Halton
48%
Herefordshire
20%

15. Table RDC0120 – Principal roads

16. Table RDC0120 – Non-principal roads

17. A Road Condition Index

18. The End