01020602

Component

The Environmental Impact Assessment (EIA) is a procedure widely used in public decision-making for transportation infrastructures and services. It aims at supporting decisions through the identification and evaluation of the impacts of the proposed projects on society, environment, land use, and economy. Unfortunately, in practice, at the time when the formal EIA procedure starts the type, scale, and, location of the projects have often already been decided based on a restricted set of economic, technical, or political criteria. A better decision-making process should consider several feasible alternatives identified and evaluated with the participation of the stakeholders and the public. The paper presents a case study of an environmental impact assessment for the choice of the transportation system in a tourist village on the Italian Alps with problems of traffic congestion. Alternative multimodal transportation systems, including demand-responsive and conventional transit systems, and measures of travel demand management, are studied and compared using a multicriteria analysis. The effects of such alternatives on mobility, environment, land use, and economy, and their psychological acceptability are evaluated. The problem is characterized by the presence of different criteria and conflicting actors, with different interests and values and with different decision power. An aggregated viewpoint is generated through a mediation of the different actors’ viewpoints to find a compromise solution. The stability of the alternative rankings is evaluated with a sensitivity analysis, and a conflict analysis is performed to examine the level of agreement associated with the compromise solution.

01020180

06-0540

English

14p

2006

Transportation Research Board 85th Annual Meeting

CD-ROM

Figures (4) ; References (23) ; Tables (5)

Decision support systems; Environmental impact statements; Multivariate analysis; Public participation; Traffic congestion; Traffic control

Alps

Data and Information Technology; Design; Energy; Environment; Highways; Operations and Traffic Management; Planning and Forecasting; Society; I15: Environment; I21: Planning of Transport Infrastructure

Transportation Research Board Annual Meeting 2006 Paper #06-0540

BTRIS, TRIS, TRB

Mar 3 2006 10:23AM