Evaluation of System Design and Operation

Prospective evaluations (evaluations prior to system installation) and retrospective evaluations (evaluations after system operation commences) are necessary to ensure that implemented systems satisfy the stakeholders’ requirements upon which they are based. To be effective, these evaluations require methods for performing annualized benefit and cost analyses. Selection of parameters for assessing benefits, and identification of key parameters associated with for benefits estimation are important for these evaluations. These topics along with planning requirements for project evaluations after operation commences are covered. The impact of evaluation requirements on system design are discussed. Methodologies that may be used to implement retrospective evaluations with emphasis on the use of traffic management systems may be used to automatically collect data and compute the measures are included.