TfL Ref: 2462-1617
Thank you for your request received by Transport for London (TfL) on 3 March 2017 asking for information about road maintenance of Bath Road, near Heathrow.
Your request has been considered in accordance with the requirements of the Freedom of Information Act and our information access policy. I can confirm that we hold the information you require.
- A copy of your current road maintenance policy relating to that road. Please send me the full policy, but this should include details of the intended frequency of road safety inspections, how these inspections should be conducted and the maximum time between identification of a defect and repairs being carried out.
Please see this link for the code of practice for highways maintenance management which we follow http://www.ukroadsliaisongroup.org/en/UKRLG-and-boards/uk-roads-board/wellmaintained-highways.cfm
We can also confirm the following:
- Frequency of safety inspection: every 7days
- Safety inspection conducted: on high speed strategic routes (50/60/70 mph) safety inspections are carried out by two operatives in a slow moving vehicle. Inspections carried out in this way, are carried out during off-peak hours where possible.
- Defects intervention criteria adopted in relation to the identification of all categories of carriageway pothole and response priority.
- Carriageway Defects
- Pothole/ spalling investigatory level - 20mm depth
- Crowning investigatory level - 50mm (area as NRSWA Code of Practice)
- Depression investigatory level - 50mm (area 2 sq.m)
- Rutting investigatory level - 20mm
- Gap/crack investigatory level - 20mm depth (20mm wide)
- Sunken ironwork investigatory level - 20mm level difference
- Oil/diesel spillage investigatory level - 300mm dia area
| Defect Categories | Priority
Response | Description & Response |
| Emergency Call Out | 1 | A defect that poses a level of risk that requires a response within 1 hour to attend the location and commence appropriate action. |
| Category 1 | 2 | A defect that poses a level of risk that requires rectification by making safe within 24 hours and permanently repaired within 28 days. |
| Category 2H | 3 | A defect that poses a level of risk that requires it to be rectified within 7 days of the Project Manager’s approval to proceed, by permanent repair. |
| Category 2M | 4 | A defect that poses a level of risk that requires it to be rectified within 28 days of the Project Manager’s approval to proceed, by permanent repair. |
2) A copy of the road repair history for that road over the past year. Again, please send me the full road repair history, but this should include:
Please see attached defect report.
- dates of all safety inspections between November 18th 2016 – 18th January 2017
Please see attached safety inspection report.
- details of how safety inspections were undertaken (walked or driven, speed of inspection vehicle etc)
Please see information in response to point 1 above.
- details of all carriageway defects identified, with description, date and time.
Please see attached defect report.
- details of how the authority handled these defects, what repairs were undertaken and the time between the identification of each defect and a repair being carried out.
Please see above defect intervention.
If this is not the information you are looking for, please do not hesitate to contact me.
Please see the attached information sheet for details of your right to appeal as well as information on copyright and what to do if you would like to re-use any of the information we have disclosed.
Yours sincerely
Sara Thomas
FOI Case Management Team
General Counsel
Transport for London
