01627554

Component

As congestion grows in metropolitan areas, agencies tend to utilize managed lanes on their freeway systems. Managed lanes may have several forms and names, such as high-occupancy vehicle (HOV) lanes, high-occupancy toll (HOT) lanes, and express lanes, bus-only lanes. Although managed lanes have received significant attention as they increase the overall throughput and improve mobility without addingmore lanes, little is 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 managed lane HOT segments located in South Florida. The site 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.

This paper was sponsored by TRB committee AHB40 Standing Committee on Highway Capacity and Quality of Service.

01618707

17-02038

English

17p

2017

Transportation Research Board 96th Annual Meeting

Digital/other

Figures; Photos; References; Tables

Freeways; Highway operations; Macroscopic traffic flow; Managed lanes; Microscopic traffic flow; Traffic congestion

South Florida

Highways; Operations and Traffic Management

Transportation Research Board Annual Meeting 2017 Paper #17-02038

TRIS, TRB, ATRI

Dec 8 2016 10:43AM