Road network performance: A review on relevant concepts

The proper functioning of road networks is fundamental for an adequate development of daily socio-economic activities and for the sustainability of modern communities. Road network performance (RNP) has received increased attention from researchers and practitioners during the past three decades. The paper provides insights regarding common elements and possible overlapping among the definitions of eleven RNP concepts (connectivity, redundancy, accessibility, reliability, connectivity reliability, travel time reliability, capacity reliability, flexibility, robustness, vulnerability, and resilience). For doing so, the authors develop a classification scheme that maps possible relationships and boundaries between them. Finally, the paper gives a discussion and puts forward promising avenues of future research.