Technical Advice Documents


Risk-based Prioritisation & Value for Money

Objective Risk-Based Prioritisation of Planned Maintenance Work for the achievement of Value for Money.

The London Bridges Engineering Group (LoBEG) and Transport for London (TfL) have developed a risk-based approach to the prioritisation of planned maintenance projects. This method is appropriate for bridges and other structures and is used to implement a consistent, objective and transparent prioritisation approach.


Lifecycle Planning for Highway Structures

LoBEG have developed a Good Practice Guide (GPG) that describes the step-by-step approach for structure specific lifecycle planning and Whole Life Costing. A Microsoft excel proof-of-concept model that enables asset managers to undertake lifecycle planning for individual structures, has also been developed. This model is accompanied by a comprehensive User Guide that provides step-by-step guidance on using/operating the model.


Maintenance Prioritisation for Highway Structures: Phase 1

LoBEG have developed a Good Practice Guide (GPG) that sets out a risk based prioritisation process for analysing raw inspection data and sorting it in order of priority (at element level). The process is intended to support bridge engineers in reviewing large quantities of inspection data and creating schemes of work. A Microsoft excel proof-of-concept model that enables asset managers to prioritise element specific maintenance needs, has also been developed.

This guide has been superseded by the newer Risk-based Prioritization & Value for Money guide. The guide remains as an alternative prioritisation method.


Creating Consistent Element Inventories for Highway Structures

Consistency is vital to current and developing Bridge Management Techniques and to ensure that these are suitably supported, it is essential that element inventories are created and maintained in a consistent manner. LoBEG have developed a Good Practice Guide (GPG) that describes the approach for creating consistent element inventories and provides guidance on consistent evaluation of Bridge Condition Indicators.


Asset Valuation for Highway Structures

LoBEG have produced a Technical Note that explains how the CSS Asset Valuation guidance (including Depreciation and Gross Replacement Cost) has been interpreted and applied in London. The Depreciation approach described in the Technical Note is based on the Guidance Document for Highway Infrastructure Asset Valuation published by the Roads Liaison Group and has now been superseded by the CIPFA code of practice. However, the Gross Replacement Cost approach described in the technical note is still current.


LoBEG Guidance Manual 2004-05

The Purpose of this “Guidance Manual” is to aid London Boroughs in the preparation of their Interim Local Implementation Plans / Borough Spending Plans (ILIP / BSP) in respect of Assessment, Strengthening and Other Maintenance & Improvement of Bridges.