These guidelines are intended to be used by National Road Authorities, their consultants and contractors at both policy and practitioner level. They provide a methodology and a set of tools for identifying technology-based interventions to implement and for evaluating their impacts. While the primary focus is on interventions aimed at encouraging mode shift towards sustainable travel, the method and the tools are also suitable for interventions addressing other key objectives of National Road Authorities, such as those aimed at improving road safety or reducing congestion. The guidelines are available on the STTRIDE web site. They consist of this overview document and a series of modules covering the various stages involved in investigating potential technologies or interventions to test or implement and planning and conducting evaluation into the impacts. The modules are accompanied by templates for users to download and edit to create their own evaluation documentation. The STTRIDE Evaluation Process Guidelines provide a common framework for CEDR authorities and their consultants to use when investigating and evaluating the impact of technology-based interventions aimed at encouraging modal shift. It is intended to provide a consistent basis for planning, conducting, analysing and reporting on such interventions that will enable the various authorities to share and compare their results, learn from the lessons of others and build an evidence base for decision-making. It provides a ‘menu’ from which authorities can plan their evaluations within an overall project management programme, taking account of their own national and local objectives and priorities and national guidance on evaluation, potentially incorporating this into their own guidance documents.