Institution: | 1. Agora Jules Dupuit (AJD), Université de Montréal, Montréal, Canada;2. Institut Français des Sciences et Technologies des Transports, de l''Aménagement et des Réseaux (IFSTTAR), Université Paris-Est, Noisy-le-Grand, France |
Abstract: | The second part of the state-of-the-art focuses on the development of the founders' double streams explaining single-outcome indicators (probability of accidents and fatalities, respectively) by fixed form regression, as outlined in the Part 1. Following Page (1997, pp. 67–122, 2001) and others, we use as turning point of the evolution of both aggregate and discrete approaches the DRAG-1 model of 1984, itself based on aggregate data, which introduced four key innovations in principle applicable to both streams. |