There is some flexibility to change the scope of work due to factors not already known about at contract signature

3  External factors that could lead to a scope change include:

■  Safety and security changes - for example, the decision by LUL in 2002 to introduce more CCTV cameras across the network. This work is additional to CCTV provisions in contractual plans to refurbish and modernise stations.

■  Standard changes - For example, LUL's statutory safety case requires it to restructure and rationalise its standards regime, for instance by reducing the number of standards from around the current 2,200 to around 400. Any changes in standards will need to be discussed with the Infracos to see if there would be any change to the scope of their work, which would need to be reflected in a revised service charge. A change in safety standards would enable the Infracos to claim compensation from LUL in the event of more costs being incurred than anticipated at contract signature.

■  Law changes - an example would be a change to safety regulations affecting only railways, which LUL would be mandated to implement and provide the Infraco with any necessary compensation.