Transport Scotland Bridges Prioritisation
Client
Transport Scotland
Project Dates
March 2018 - September 2018
Scope
The scope of the works is to use existing Inspection Condition information to provide the client with a programme of maintenance works based on the risk. A combined risk score is utilised which takes account of external factors (e.g. risk of flooding), structural form & capacity (e.g. foundation type, assessed capacity) and existing defects. The project includes 4538 structures, comprising Bridges, Footbridges, Retaining Walls, High Mast Columns, Culverts and Sign Gantries.
Data is to be extracted directly from the Clients’ Structures Management System and then rationalised to ensure that data is of a comparable format across all structure types.The data then goes through a set of risk analysis tools based on a set protocol, ultimately producing a risk score for each element to allow programming of work across the whole network.
Statement of Satisfactory Completion
The project is still ongoing and is expected to be completed to programme and to the Clients’ requirements.
Regular progress meetings and communication between WSP and the Client ensures that any risks to the programme are minimised and avoided.
Project Delivery
Within WSP the project was split into two separate delivery areas – data extraction and work prioritisation. This approach was instrumental in efficient allocation of resources due to the differing skillsets required for each deliverable. Each deliverable is overseen by a member of the project team, who understands what each deliverable adds to the larger project. Due to the complexities of undertaking a risk based prioritisation over a large number of structures it was important to ensure that we had resources familiar with such an approach and had undertaken previous projects involving risk based analysis of defects. Dedicated teams were established for each deliverable, with each team lead by experienced staff with the appropriate experience. Training within teams was undertaken prior to commencement and centred on the tasks being undertaken within the team.
Added Value
WSP is providing added value to the client by detailing the process undertaken and providing feedback on the system which will culminate in a recommendation for improvements to the system and how it can be maintained on an ongoing basis.
Innovation
This project provides an innovative approach to asset management and maintenance, throughout this project we are looking for new and innovative ways of handling and using data. The data extraction team are having regular meetings with the WSP Data Solution Department to look for ways to streamline the process involved and also using software to verify data to ensure accuracy across the project.
Collaborative Approach
As part of the proposal agreed with Transport Scotland and our approach in general, we are working with their Area Managers and Operating Companies to review the prioritised work bank.
Collaborative Approach
WSP Contacts
Serge Mikhaylov & Iain MacKenzie
Throughout this project the data is being validated and engineering judgement is being used to verify and challenge the outcome from the prioritisation. Reviews are being carried out at all stages of the process to ensure that the output from the analysis tools is correct and is representative of the current real-world situation. Hold points have been built into the delivery plan to ensure that data and outputs are verified prior to moving onto the next stage in the project.
Late Change and Volume Fluctuation
Project risk registers are held for the project and open discussions held with the client. Early warnings are to be issued when new risks arise to ensure that any risks to the scope and value of the project can be quickly addressed and minimised.