Micro-scale sustainability assessment of infrastructure projects on urban transportation systems: Case study of Azadi district, Isfahan, Iran

Cities ◽  
2018 ◽  
Vol 72 ◽  
pp. 149-159 ◽  
Author(s):  
Mohammad Hadi Mansourianfar ◽  
Hossein Haghshenas
1978 ◽  
Vol 5 (4) ◽  
pp. 497-504
Author(s):  
D. Khalil ◽  
M. A. Sargious

This paper reports the results of a study on developing level of service indices for evaluating urban transportation systems. For this purpose the travel choices of individuals are analyzed considering the effect of the transportation system characteristics on the system's level of service as perceived by the user. A utility maximization approach is used to yield a utility function that contains a new behavioural measure of accessibility. This function is considered as a level of service index that reflects the marginal benefits to a system's user when he makes a trip by the system.The parameters of the level of service indices are determined by using a sample consisting of 2695 trips obtained from the 1976 work trip survey for the City of Calgary, Alberta, Canada. Level of service indices are developed for four modes: auto driver, auto passenger, conventional bus, and express bus.The implementation procedure of the indices for assessment and evaluation is shown by a case study for the City of Calgary.


2020 ◽  
Vol 12 (6) ◽  
pp. 2208 ◽  
Author(s):  
Jamie E. Filer ◽  
Justin D. Delorit ◽  
Andrew J. Hoisington ◽  
Steven J. Schuldt

Remote communities such as rural villages, post-disaster housing camps, and military forward operating bases are often located in remote and hostile areas with limited or no access to established infrastructure grids. Operating these communities with conventional assets requires constant resupply, which yields a significant logistical burden, creates negative environmental impacts, and increases costs. For example, a 2000-member isolated village in northern Canada relying on diesel generators required 8.6 million USD of fuel per year and emitted 8500 tons of carbon dioxide. Remote community planners can mitigate these negative impacts by selecting sustainable technologies that minimize resource consumption and emissions. However, the alternatives often come at a higher procurement cost and mobilization requirement. To assist planners with this challenging task, this paper presents the development of a novel infrastructure sustainability assessment model capable of generating optimal tradeoffs between minimizing environmental impacts and minimizing life-cycle costs over the community’s anticipated lifespan. Model performance was evaluated using a case study of a hypothetical 500-person remote military base with 864 feasible infrastructure portfolios and 48 procedural portfolios. The case study results demonstrated the model’s novel capability to assist planners in identifying optimal combinations of infrastructure alternatives that minimize negative sustainability impacts, leading to remote communities that are more self-sufficient with reduced emissions and costs.


Author(s):  
Shuai Ling ◽  
Shoufeng Ma ◽  
Ning Jia

AbstractThe rapid development of economics requires highly efficient and environment-friendly urban transportation systems. Such requirement presents challenges in sustainable urban transportation. The analysis and understanding of transportation-related behaviors provide one approach to dealing with complicated transportation activities. In this study, the management of traffic systems is divided into four levels with a structural and systematic perspective. Then, several special cases from the perspective of behavior, including purchasing behaviors toward new energy vehicles, choice behaviors toward green travel, and behavioral reactions toward transportation demand management policies, are investigated. Several management suggestions are proposed for transportation authorities to improve sustainable traffic management.


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