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Sustainability framework for urban transportation modes and exploratory applications
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|Title:||Sustainability framework for urban transportation modes and exploratory applications|
|Keywords:||urban transportation modes|
|Date Issued:||Dec 2011|
|Publisher:||[Honolulu] : [University of Hawaii at Manoa], [December 2011]|
|Abstract:||Increasing environmental concerns as well as economic and social impacts of transportation in communities necessitate the incorporation of sustainability into the planning process. The common approach for sustainability assessment in transportation considers only personal vehicles or all modes present on a section of a network using aggregate measures of performance. The accelerated development and introduction of vehicles with alternative propulsion systems compel a detailed breakdown of vehicle components and characteristics for the proper understanding of their sustainability performance and impacts over their entire life cycle.|
This study develops a long-term sustainability-based comprehensive framework for the life cycle assessment of any urban transportation mode. In developing a life cycle sustainability framework (LCSF), the generic structure components of a transportation system and the restrictions that may be faced in its development and implementation are considered. LCSF consists of seven fundamental dimensions that govern transportation systems: (1) Environment; (2) Technology; (3) Energy; (4) Economy, (5) Users and other stakeholders, (6) Legal framework, and (7) Local restrictions.
LCSF is used to assess the sustainability performance of 11 vehicles with a variety of propulsion technology. The vehicles are ranked based on their performance per sustainability dimension, and overall sustainability. Gasoline pickup truck (GTP) and gasoline SUV are the most energy demanding vehicles. Hybrid electric are the least energy demanding vehicle per vehicle mile traveled over its life cycle, with 44% lower energy requirements than an internal combustion engine vehicle. Car Share and BRT have the lower energy consumption per passenger mile traveled (PMT).
Vehicle-specific results were combined in a tool to perform a sustainability assessment of Atlanta, Chicago and OPTIMUS--a hypothetical metropolitan area with superior transportation sustainability elements. Normalized indicators per metropolitan area are aggregated into a sustainability dimension index (SDI) and an overall sustainability index (OSI). Both SDI and OSI are used to reveal dimension specific and overall sustainability tradeoffs for each alternative when different characteristics, policies, scenarios and assumptions are used. The sustainability LCSF with its proposed indicators provides a workable method both for sustainability assessment in transportation planning and for facilitating policy analysis and decision-making.
|Description:||Ph.D. University of Hawaii at Manoa 2011.|
Includes bibliographical references.
|Appears in Collections:||
Ph.D. - Civil Engineering|
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