Improving Transport Project Appraisals
In the Islamic Countries
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Figure 1.12: Standard transport model structure adopted in the UK
Source: UK Department for Transport20
National and regional traffic models are usually prepared by central or regional public authority
in charge of transport planning and implementation. They are developed either by internal
specialised units or by external consultancy or, more often, academics. They require highly-
specialised expertise both for its design and running. A full ownership of the traffic model is
necessary in order to allow its update and adjustment over time. Ad-hoc prepared traffic models
are less effective and reliable.
1.2.6 Results of project appraisal
The project selection is an important element of the institutional dimension and relates to the
extent to which results of the appraisal are actually used and fed into how the decision-making
process. It includes the following elements: a) Use of the results; b) Selection criteria.
2
Pg.6.