Abstract
Interchange ramp terminals provide connections between various types of highways (arterial-freeway, freeway-freeway, arterial-arterial). Alternative intersection designs are innovative configurations that have the potential to improve operations by rerouting certain movements. The first part of this chapter presents examples of interchange configurations, discusses traffic operational effects of interchange characteristics and signalization for two-intersection interchanges, and summarizes the HCM7 methodological framework for these types of facilities. The second part discusses traffic operations and the HCM7 methodology for alternative intersections.
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References
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Problems
Problems
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1.
Conduct a literature review to identify alternative interchange designs not described in this chapter. Under what demands would each of these alternative designs be desirable?
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Identify in your area (or online) an alternative intersection design and describe its operation. Are there operational deficiencies in its operation? How is pedestrian movement handled at this location?
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Select a traffic microsimulator and document its approach to modeling alternative intersection designs. What are the assumptions needed to model a signalized RCUT intersection, such as the one shown in Fig. 12.14?
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Elefteriadou, L. (2024). Interchanges and Alternative Intersection Designs. In: An Introduction to Traffic Flow Theory. Springer Optimization and Its Applications, vol 84. Springer, Cham. https://doi.org/10.1007/978-3-031-54030-1_12
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DOI: https://doi.org/10.1007/978-3-031-54030-1_12
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