A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Saving space in a dense city: When designers should consider the new nano-interchange
Abstract In the dense cities of developing countries, freeway designers need to provide large capacities in small areas. The nano-interchange, a new system interchange, attempts to address this challenge. The authors designed each alternative at 35, 45, and 55 mph ramp design speeds. The designs revealed that the nano-interchange saves space for any given ramp speed, and the construction plus right-of-way costs may not be much higher than the four-level. Operation estimations showed small travel time savings for the four-level interchange at any particular design speed. Safety evaluations indicated that the nano-interchange will likely cause more reported collisions at ramp junctions. Overall, designers should consider the nano-interchange when they want to keep ramp design speeds higher, but designers willing to reduce ramp design speeds will find the four-level a tough competitor.
Saving space in a dense city: When designers should consider the new nano-interchange
Abstract In the dense cities of developing countries, freeway designers need to provide large capacities in small areas. The nano-interchange, a new system interchange, attempts to address this challenge. The authors designed each alternative at 35, 45, and 55 mph ramp design speeds. The designs revealed that the nano-interchange saves space for any given ramp speed, and the construction plus right-of-way costs may not be much higher than the four-level. Operation estimations showed small travel time savings for the four-level interchange at any particular design speed. Safety evaluations indicated that the nano-interchange will likely cause more reported collisions at ramp junctions. Overall, designers should consider the nano-interchange when they want to keep ramp design speeds higher, but designers willing to reduce ramp design speeds will find the four-level a tough competitor.
Saving space in a dense city: When designers should consider the new nano-interchange
Moon, Jae-Pil (author) / Hummer, Joseph E. (author) / Duyn, Meredith H. (author)
KSCE Journal of Civil Engineering ; 15 ; 1101-1108
2011-07-01
8 pages
Article (Journal)
Electronic Resource
English
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