Computing Moving and Intermittent Queue Propagation in Highway Work Zones

Ramezani, Hani; Benekohal, Rahim F.; University of Illinois at Urbana-Champaign. Dept. of Civil and Environmental Engineering

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Computing Moving and Intermittent Queue Propagation in Highway Work Zones

2012-07-01
By Ramezani, Hani ; Benekohal, Rahim F.

[PDF-1.47 MB]

English

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Creators:

Ramezani, Hani ; Benekohal, Rahim F.

Ramezani, Hani ; Benekohal, Rahim F. Less -
Corporate Creators:

University of Illinois at Urbana-Champaign. Dept. of Civil and Environmental Engineering
Corporate Contributors:

United States. Dept. of Transportation. Research and Innovative Technology Administration
Subject/TRT Terms:

[+]

Computer Programs Highways I73: Traffic Control Mathematical Models Operations And Traffic Management Research Hub Simulation Traffic Congestion Traffic Delay Traffic Flow Rate Traffic Jams Traffic Queuing Work Zones Work Zone Traffic Control
Publication/ Report Number:

Project No. 071IY03
Resource Type:

Tech Report
Geographical Coverage:

United States
TRIS Online Accession Number:

01481637
Edition:

Final Report
Corporate Publisher:

NEXTRANS Center (U.S.)
NTL Classification:

NTL-OPERATIONS AND TRAFFIC CONTROLS-Congestion;NTL-OPERATIONS AND TRAFFIC CONTROLS-Traffic Flow;NTL-HIGHWAY/ROAD TRANSPORTATION-HIGHWAY/ROAD TRANSPORTATION;
Abstract:

Drivers may experience intermittent congestion and moving queue conditions in work zones due to several reasons such as presence of lane closure, roadway geometric changes, higher demand, lower speed, and reduced capacity. The congestion and queue have spatial and temporal effects and knowing their extent is needed to find users’ cost, and to select traffic management strategies to reduce congestion in work zones. The first objective of this study was to develop a computer program, called IntQ, to estimate delay and queue length for intermittent queues in work zones. The IntQ models intermittent arrival pattern for groups of vehicles and generates the group characteristics, such as inter-group gap and group size, from statistical distributions developed from field data for work zones. Then the groups are moved along the network under certain rules. Also the effects of traffic volume on the distributions are discussed. The second objective was to develop a computer program called MovQ to study moving queues in work zones. Inputs to MovQ are geometric, construction and demand data, and output is queue length, delay, and state of traffic. The MovQ establishes speed-flow curves for each section of a work zone and uses shockwave theory to keep track of interactions between traffic waves. The report includes discussions about computational issues, input/output data, and example problems that are solved using the programs.
Format:

PDF
Collection(s):

University Transportation Centers US Transportation Collection
Main Document Checksum:

[+]

urn:sha256:b58578b4611d6509de0bb61b37abe6dd9926ecc1145c493b52db42ed7b656cd6
Download URL:

https://rosap.ntl.bts.gov/view/dot/23340/dot_23340_DS1.pdf
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Computing Moving and Intermittent Queue Propagation in Highway Work Zones

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