摘要: |
The 1990s may well be remembered as the decade in which the idea of 'sustainability' took hold in government, business, academia, and popular culture. In the United States, concerns with sustainability or sustainable development have entered policy discussions at various levels of government and sectors of the economy. The application of the sustainability paradigm to transportation has coincided with the advent of Intelligent Transportation Systems (ITS). ITS - the application of advanced technologies (e.g. computers, communications, advanced sensors) to the surface transportation system - is a major new advanced transportation technology initiative that has become a highly-touted prospect for improving the nation's surface transportation system. ITS could have significant effects on the nation's environment, economy, and society, and this has prompted widespread research and speculation on the range of potential ITS impacts. It has also brought ITS into the sustainability debate, and controversy exists over whether ITS will facilitate or undermine efforts to promote sustainable communities. This paper reports on a series of conceptual and applied exercises being done at the national level, as well as within the state of Minnesota, on the implications of the sustainability paradigm on ITS. After a brief introduction to the policy context surrounding ITS, the authors examine key dimensions of the sustainability concept, particularly sustainable development and sustainable communities. They then link the concept of sustainable communities to transportation and ITS, exploring six specific areas - air quality, land use, social equity, environmental policy, public-private partnerships, and congestion pricing - that are central to the ITS/sustainability debate. The authors conclude with preliminary findings on how ITS and other emerging information technologies might promote sustainable communities, with special attention to the context of Minnesota's ITS program. |