The Highways Agency has learned that a "robust, auditable allocation of risk" is preferable to maximum risk transfer. Over time, the agency has sought to create a stable environment for risk allocation and management through measures such as the creation of a standard baseline contract document and the use of project procurement techniques such as conducting risk workshops and negotiating risk adjustments before finalizing project-specific agreements. Like Portugal and Spain, the United Kingdom may shorten the term of PPP contracts when the private partner's actual revenues exceed originally projected revenues.