Transport modelling is a way of predicting what will happen if we make efficient and effective changes to the road or transport network in the county.

For example, if we build a new:

• bypass
• housing estate
• employment site

Transport models follow the government's Transport analysis guidance (TAG).

The models assist how new developments or highway improvements are reviewed through the analysis of:

• traffic flows on particular highway links
• link time especially to determine impacts of congestion
• routing information
• trips for any given year or scenario
• mode, destination and time of day choice

We established the process to ensure that the development and appraisal of Transport Assessments are carried out in an efficient and effective manner.