Quality assurance systems in transport modelling.

This technical paper details the outcome of the development of a quality assurance (QA) system for transport modelling tasks. We primarily focus on general QA procedures which are relevant to all modelling projects. We set out good practice operating procedures for the naming, storage and logging of critical input and output data, covering model directories, interfaces and log files and the use of version control and configuration management. All model updates and scenarios need to be reviewed and approved by a nominated technical reviewer with knowledge of the model and the modelling software. We also look at the QA systems for setting up the base model and for scenario testing. For the base models there is a focus on calibration and validation acceptance tests while clear file naming and configuration management are needed to reduce the possibility of errors in scenario testing, where large numbers of scenarios and input assumptions are incorporated. (a) For the covering entry of this conference, please see ITRD abstract no. E216058.