One work area of the PIARC Committee 14 on "Sustainable development and Road Transport" concerns the evaluation and limitation of impacts of road networks and transport policies. The Road is life (Via Vita). This are the words contained in the logo of the World Road Association established in 1909. With this as their moto, most developed countries, and more precisely the engineers have through the years provided for the design, construction, maintenance, management and operation of roads. The primary need and in many cases the only point of interest was of transporting people and goods via the road network. Meeting the increasingly higher demand for mobility, however, has in recent years required engineers to organise transport in a more sustainable manner and to conceptualise the infrastructure required for such with a better view toward its effect on the environment and on society. During the C14 meetings many issues related to the impact of road networks and transport policies on health, local pollution, biodiversity, landscapes, vehicle regulation and promotion of less polluting vehicles have been discussed and it was decided to design a questionnaire to gather information. The purpose of the questionnaire was to gain a better knowledge of the social and environmental impacts of transport policies, to improve processes enabling social acceptance through public debate, and to provide concrete answers to the questions highlighted by the survey.