Ecology, Environment and Conservation Paper

MOBILITY AND RISK INTERACTION: VULNERABILITY OF ACCESSIBILITY OF THE ALGIERS METROPOLIS

Nait Amara Farid and Baouni Tahar

Abstract

This article emphasizes on the analysis of the vulnerability of people physical infrastructures’ mobility at a territorial level, in an area with a radius of 200Km around Algiers site. After defining the terminology used, the methodology has been detailed in four parts. The first part is devoted to the understanding of people’s daily transportations, and the infrastructural chain of transport system in the capital of Algiers. This part allows us to identify and localize, in a second part, the key-infrastructures, major pieces of roads networks and transport. In the third part, these key-infrastructures vulnerabilities were evaluated, which predispose them to damages and failures. The objective of the third part was to understand risks involved by the entire areas studied, including the possible reduction in the accessibility of different spaces due to operational loss of key-infrastructures. Different scenarios have been envisaged, placing into perspective the predictable spatial repercussions, at the capital’s level. The results are expressed by maps and time access curves for several types of issues (between different urban areas, and access to major medical infrastructures of Algiers).