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Traffic and environmental impact assessment of partial cloverleaf interchange junctions

Nieland, Robin (2007) Traffic and environmental impact assessment of partial cloverleaf interchange junctions.

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Abstract:An efficient working transportation system is necessary for every decent sized city. However the current infrastructure does not provide the people with enough possibilities to travel. The lack of enough infrastructure results in congestion which in turn leads to increased travel times, increased fuel consumption and decreased driver experience. This study investigated a case study from Boca Raton, Florida where the transportation network does not perform very well. A model has been made using CORSIM and this model is calibrated with the current traffic counts and turning movements. Different alternatives have been designed and implemented and have been simulated multiple time with increasing traffic volumes to forecast future scenarios. Finally an environmental assessment has been made to determine the effects of different alternatives on fuel consumption and air pollution. Nowadays it’s rather important to understand the effects on an environmental level because a future transportation system can only work if it’s a sustainable one that is not only user-friendly but eco-friendly as well. For a low traffic volumes scenario the best alternative was the full cloverleaf configuration. This design decreases travel time by 10%. It loses ground however when traffic volumes increase. For medium traffic volumes the increase in lanes causes a reduction in travel time of almost 30%. These alternatives do not perform as good as the Turbo T-design in the high traffic volume scenario. The Turbo T-design combined with various pocket adjustments decreased travel time by over 20%. This design also decreases fuel consumption by 20% with these traffic volumes showing that it is a environmental sustainable solution.
Item Type:Essay (Bachelor)
Florida Atlantic University, Boca Raton, United States
Faculty:ET: Engineering Technology
Subject:56 civil engineering
Programme:Civil Engineering BSc (56952)
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