I am an expert in road traffic modelling at strategic, tactical and operational levels. I have more than 25 years of experience in the field having published many papers and have provided advice to the Highways Agency, the Department for Transport, the European Commission Transport Directorate and many local authorities throughout the UK.Since April 2011 I have been Managing Director of my own company called Fox Traffic Simulation which provides independent traffic modelling services to the public and private sectors. Previously for 10 years I was a Senior Consultant with the engineering company Halcrow where I was based in their Leeds office. Prior to taking up employment with Halcrow I was a Senior Research Fellow at the Institute for Transport Studies at the University of Leeds for almost nine years. At ITS I was project manager of a number of large European Commission funded collaborative projects and I had more than twenty papers published.I have made many presentations of my work at conferences, to clients and stakeholders, at Public Inquiries and traffic simulation software user group meetings. This has given me a unique perspective on the possibilities that traffic modelling has to offer clients in resolving their understanding of complex traffic problems.I have also given training courses in the use, calibration and validation of various traffic modelling packages and on the differences between the various packages – providing guidance on when one model should be used over another. I co-authored the Highway’s Agency advice note for the application of micro simulation models now included as part of DMRB guidelines. I also have considerable experience in auditing traffic models.Specialties: Road traffic simulation modelling, Aimsun, Paramics, VISSIM, SATURN, TRANSYT.