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dc.contributor.authorSajjadi, Soheil
dc.contributor.authorKondyli, Alexandra
dc.date.accessioned2018-12-13T17:13:20Z
dc.date.available2018-12-13T17:13:20Z
dc.date.issued2017-12-05
dc.identifier.citationSajjadi, S., & Kondyli, A. (2017). Macroscopic and microscopic analyses of managed lanes on freeway facilities in South Florida. Journal of traffic and transportation engineering (English edition), 4(1), 61-70.en_US
dc.identifier.urihttp://hdl.handle.net/1808/27501
dc.description.abstractAs congestion grows in metropolitan areas, agencies tend to utilize managed lanes on their freeway systems. Managed lanes have several forms and names, such as high-occupancy vehicle (HOV) lanes, high-occupancy toll (HOT) lanes, express lanes, and bus-only lanes. Although managed lanes have received significant attention as they increased the overall throughput and improved mobility without adding more lanes, little has been known about their operational capabilities. In addition, calibrating managed lane facilities can be challenging as they do not necessarily follow the same behavior with general purpose freeway lanes.

This paper presents an operational analysis of two HOT lane segments located in South Florida. The sites are one-lane and two-lane segments separated by flexible pylons (FPs). The paper includes a macroscopic capacity analysis, and a microscopic calibration of the two sites using VISSIM microsimulation. The research findings assist in determining the capacity and speed-flow relationship of these segments, and also provide guidance for microsimulation model calibration for practitioners.

The results of the study indicate that the percent drop in capacity for the one-lane FP site is 7.6% while the flow did not substantially change after the breakdown in the two-lane FP site. The research findings also include guidelines for simulating the breakdown events and calibrating one-lane and two-lane managed lane facilities in VISSIM microsimulation software. The Wiedemann car-following parameters (CC0 = 3.9 ft, CC1 = 1.9 s, CC2 = 26.25 ft, CC4 = −0.35, and CC5 = 0.35) provided the best fit for the one-lane FP site, while the combination (CC0 = 4.92 ft, CC1 = 1.9 s, CC2 = 39.37 ft, CC4 = −0.7, and CC5 = 0.7) parameters is recommended for the two-lane FP site.
en_US
dc.publisherElsevieren_US
dc.rights2017 Periodical Offices of Chang'an University. Publishing services by Elsevier B.V. on behalf of Owner. This is an open access article under the CC BY-NC-ND license.en_US
dc.rights.urihttp:// creativecommons.org/licenses/by-nc-nd/4.0/en_US
dc.titleMacroscopic and microscopic analyses of managed lanes on freeway facilities in South Floridaen_US
dc.typeArticleen_US
kusw.kudepartmentCivil, Environmental & Architectural Engineeringen_US
dc.identifier.doi10.1016/j.jtte.2016.12.002en_US
kusw.oaversionScholarly/refereed, publisher versionen_US
kusw.oapolicyThis item meets KU Open Access policy criteria.en_US
kusw.proid145048657920en_US
dc.rights.accessrightsopenAccessen_US


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2017 Periodical Offices of Chang'an University. Publishing services by Elsevier B.V. on behalf of Owner. This is an open access article under the CC BY-NC-ND license.
Except where otherwise noted, this item's license is described as: 2017 Periodical Offices of Chang'an University. Publishing services by Elsevier B.V. on behalf of Owner. This is an open access article under the CC BY-NC-ND license.