Dezhong Xu

College of Engineering

Works (3)

Updated: July 5th, 2023 15:20

2021 journal article

Capacity Analysis Framework for Freeway Ramp Weaves

JOURNAL OF TRANSPORTATION ENGINEERING PART A-SYSTEMS, 147(12).

By: E. Amini *, D. Xu n, N. Rouphail n, L. Elefteriadou * & B. Aghdashi*

author keywords: Highway capacity manual; Freeway weaving analysis; Freeway systems analysis
TL;DR: The Highway Capacity Manual 6th Edition provides methods for evaluating freeway segments and facilities, including weave segments, including weaving segments, which cast doubt on the validity of previous research. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: November 1, 2021

2020 journal article

Modeling Framework for Capacity Analysis of Freeway Segments: Application to Ramp Weaves

TRANSPORTATION RESEARCH RECORD, 2674(1), 148–159.

By: D. Xu n, N. Rouphail n, B. Aghdashi n, I. Ahmed n  & L. Elefteriadou *

Contributors: D. Xu n, N. Rouphail n, B. Aghdashi n, I. Ahmed n  & L. Elefteriadou *

TL;DR: A new modeling framework for the analysis of freeway segments that distinguishes between congestion effects caused by high v/c ratios from turbulence caused by merging, diverging, and weaving traffic, thus greatly simplifying the model form and its extensibility to other freeway segment types. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Sources: Web Of Science, ORCID, NC State University Libraries
Added: February 3, 2020

2019 journal article

Lane Change Rates at Freeway Weaving Sites: Trends in HCM6 and from NGSIM Trajectories

TRANSPORTATION RESEARCH RECORD, 2673(5), 627–636.

By: I. Ahmed n , D. Xu n, N. Rouphail n & A. Karr *

Contributors: I. Ahmed n , D. Xu n, N. Rouphail n & A. Karr *

TL;DR: Analysis of HCM6 lane change patterns at the NGSIM site revealed a tendency for early merging for freeway to ramp traffic and uniform merging for ramp to freeway traffic over the length of the weave, and a speed analysis showed that a higher frequency of discretionary lane changes yielded lower travel times for drivers executing them. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Sources: Web Of Science, ORCID, NC State University Libraries
Added: July 15, 2019

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