Motorways in Portugal received large scale funding after the country joined the European Union in 1986, making it an ideal case to study the effect of road accessibility on the development of lagging rural areas.We investigate the relationship between rural population change and road accessibility to the urban hierarchy between 1991 and 2011. We find that rural population growth is negatively associated with increased road distance and travel time to cities, notably to medium-sized cities (20,000-99,999 inhabitants).There is no evidence of nonlinearities in the effect of proximity to the urban hierarchy between accessible and remote rural areas.population change, road accessibility, rural areas, rural-urban linkages, spillover effects
| INTRODUCTIONThe nature of the relationship between urban and rural areas is complex and has changed over time in tandem with improvements in information and communication technologies, leading to an increasingly blurry distinction between what is urban and rural (Irwin et al., 2009). While the theories and models explaining these linkages differ across disciplines (e.g., economics, geography, and planning), there is a general belief that proximity to cities can benefit surrounding rural areas by providing markets for the goods produced in rural areas and a larger and more diversified pool of employment opportunities and services (e.g., public services, hospitals, and schools). At the same