Operational and Emission Analyses of Roundabouts Under Varied Vehicle and Pedestrian Demands

Christofa, Eleni; Knodler, Michael A.

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Operational and Emission Analyses of Roundabouts Under Varied Vehicle and Pedestrian Demands

2018-04-05
By Christofa, Eleni ; Knodler, Michael A.

File Language:

English

Details

Creators:

Christofa, Eleni ; Knodler, Michael A.
Corporate Creators:

University of Massachusetts at Amherst
Corporate Contributors:

New England University Transportation Center ; United States. Department of Transportation. University Transportation Centers (UTC) Program ; United States. Department of Transportation. University Transportation Centers (UTC) Program
Subject/TRT Terms:
Publication/ Report Number:

UMAR25-24
Resource Type:

Tech Report
Geographical Coverage:

United States
Edition:

Year 25 Final Report
Corporate Publisher:

New England University Transportation Center
Abstract:

Roundabouts are becoming more and more common as an alternative to signalized intersections throughout the United States. The primary reason for an increased interest in roundabout construction has been their safety advantages compared to signalized intersections due to the reduced number of conflict points and lower vehicle speeds (1). As a result of the increasing popularity of roundabouts, several research efforts have evaluated their performance in terms of operations and safety. However, only a few recent studies have focused on the environmental performance of roundabouts and those have not resulted in consistent conclusions. In addition, most of the studies have focused on the effect of car demand on emissions and there has been less attention to the pedestrian crossing impacts on vehicles' stops and emissions. The goal of the proposed research is to conduct a comparative evaluation of the impact of vehicle and pedestrian demand on the operational and environmental performance at roundabouts and signalized intersections.
Format:

PDF
Funding:

DTRT13-G-UTC31
Download URL:

https://rosap.ntl.bts.gov/view/dot/43917/dot_43917_DS1.pdf
File Type:

[PDF - 2.19 MB]
Collection(s):

University Transportation Centers ; US Transportation Collection
Main Document Checksum:

urn:sha-512:5e2e6887be8333d1a197f98016fcea608aa0b93b7fa4d23e740aedffef407a3d5de4e2a2a43ff98bc3a8a50712608b1fbc323ffa78db8a36c4ef73aa569c64f6

File Language:

English

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