Maintenance and Cost Analysis on Major Subsurface Rail Projects - Crossrail

As the project is a new infrastructure project the early thinking was to promote an integrated maintenance strategy (IMS). The aim was to develop an integrated and optimised cost maintenance regime. The IMS was founded on the principle of minimising maintenance and mitigating maintenance issues by influencing the design of infrastructure during design and construction. To develop this concept, a maintenance strategy had to be developed. This considered items such as allocation of assets between the Infrastructure Managers (IM), how targets for the reliability, availability, maintainability, and safety (RAMS) were achieved through incorporation of maintenance requirements into the design. The strategy had to cover a vast amount of information for its initial development, which is illustrated in figure 1.