Developing Green Road Index Using Analytical Hierarchy Process
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Date
2023
Authors
امجد بني عودة
محمد اشتية
عبد الرحيم جمعة
رغد البظ
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Abstract
In the past ten years, the city of Nablus witnessed a remarkable development in traffic and human activities due to the rapid development in various fields, which negatively affected several aspects, such as the environmental and economic aspects. Accordingly, the graduation project team in graduation project I (GP I), defined and discussed the green road concept, and proposed 15 factors for the green road according to the opinions of experts.
In GP II, the students used the Analytic Hierarchy Process (AHP) to analyze the design criteria proposed in GP I, and classified them into four important criteria. Accordingly, the Green Road Index (GRI) was developed using Analytical Hierarchy Process (AHP) method using four criteria: environment, geometric design, safety, and cost. That was the aim of this graduation project (GPII).
In Palestine, there is an official council which encourages and follow up the design and construction of Green Building. However, the road asset is missing such council. Consequently, the GPII students investigated and recommended 18 design factors which were arranged under the aforementioned four criteria.
The GPII team prepared a questionnaire and distributed it among 40 experts in the field of roads, environment, planning, sustainability, and transportation. However, about 30 experts filled and resent the questionnaires. They used AHP method through making the pairwise comparison considering the aforementioned design criteria.
The GRI was developed using AHP method, the priority vector was calculated and the corresponding weight for each design criterion was: environment (0.450), geometric design (0.214), safety (0.222) and cost (0.114).
Moreover, the Environment Index was developed using AHP method, the priority vector was calculated and the corresponding weight for each design criterion was: encouraging to use the public transportation (0.43), creating advanced drainage system (0.21), reducing the amount of emissions (0.23) and the type of the fuel used (0.13).
On the other hand, the Geometric Design Index also developed using AHP method, and the priority vector was calculated and the corresponding weight for each design criterion was: reducing the slope (0.30), landscaping (0.22), providing special lanes for (bicycles, ambulance, public bus) (0.21), traffic control devices (0.16) and the climbing lane (0.11).
For the Safety Index it was developed using AHP method, and the priority vector was calculated and the corresponding weight for each design criterion was: fixing the load (0.259), lightening using solar panel (0.245), providing pedestrians facilities (0.212), smart auto-drive system (0.134) and the enforcement and regulations (0.150).
Finally, the cost Index was developed using AHP method, the priority vector was calculated and the corresponding weight for each design criterion was: using solar energy to produce electricity (0.38), construction materials (mix design) (0.25), fuel cost (0.19) and using of recycled materials such as (scrapped asphalt) (0.18).