Detailed Evaluation
The processes used to support transport related decision-making, fall into two main categories, namely: strategic assessment and detailed evaluation.
Detailed Evaluation
Detailed evaluation represents a detailed pre or post-investment scrutiny of proposals. This is an important process and usually includes operational factors, (travel time, vehicle costs and safety). Detailed evaluation can also take account of other (monetised and non-monetised) environmental, social and economic aspects.
Detailed evaluation methods are most effective if they are consistent with strategic assessment methods and used for selecting proposals for implementation purposes.
Cost benefit analysis is often used as a component of detailed evaluation to compare costs and monetised benefits and is typically applied to packages and proposals.
Scenario testing
Future transport system conditions need to be considered when evaluation is undertaken. For example, if it is thought that pricing arrangements may change in the future, this can be allowed for in evaluation methodologies.