Glyn Rhys-Tyler Ltd is an independent consultancy and research company in the UK specialising in the field of highway transportation and environmental impact. The company principal has over 30 years’ experience in transportation planning, transport modelling, traffic engineering, environmental impact assessment and research. The company provides specialist services and support to a range of public and private sector clients with the aim of improving environmental quality. This is achieved through gaining a better understanding of the changing nature and sources of pollution from transportation systems, with a particular focus on the exhaust emissions characteristics of road vehicles.

Management, policy and strategy development

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Scenario development and air quality action planning

Road vehicle exhaust emissions and technology

Glyn Rhys-Tyler Ltd

Independent consultancy & research

                        Transportation & Environment


Road vehicle exhaust emissions and vehicle dynamics / driver behaviour

Communications and engagement

Traffic and transportation planning and modelling