Best practices for roundabouts on state highways.

Christopher M. Day,; Alexander M. Hainen,; Darcy M. Bullock

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Best practices for roundabouts on state highways.

2013-07-01
By Christopher M. Day, ; Alexander M. Hainen, ; Darcy M. Bullock

File Language:

English

Details

Creators:

Christopher M. Day, ; Alexander M. Hainen, ; Darcy M. Bullock
Corporate Creators:

Purdue University. Joint Transportation Research Program
Corporate Contributors:

United States. Federal Highway Administration ; Indiana. Dept. of Transportation
Subject/TRT Terms:
Publication/ Report Number:

FHWA/IN/JTRP-2013/14
Resource Type:

Tech Report
Geographical Coverage:

United States
Corporate Publisher:

Purdue University. Joint Transportation Research Program
Abstract:

This report presents a series of research findings from an investigation into roundabout operations. This includes a comparison of ; several analysis tools for estimating roundabout performance (the Highway Capacity Manual, SIDRA, ARCADY, VISSIM, and SimTraffic); a ; measurement of rejected headways for the purpose of analyzing critical headway; a review of roundabout lighting practices; and a ; review of considerations for roundabout site selection. It was found that VISSIM and SIDRA provided the most reliable predictions of ; roundabout performance for the test site analyzed herein. Additionally, the critical headways measured at this site were significantly ; lower (at a median value of 2.2 seconds) than other values published in the literature, with driving populations less acquainted with ; roundabouts. Additionally, a site selection procedure is developed based on a survey of peer agency practices and a checklist is provided ; for assisting in the determination of whether roundabout control is a feasible alternative for a location. Finally, based upon a review of ; the literature and practices commonly followed by peer states, we recommend that roundabouts be lighted.
Format:

PDF
Funding:

SPR-3530
Download URL:

https://rosap.ntl.bts.gov/view/dot/26744/dot_26744_DS1.pdf
File Type:

[PDF - 7.52 MB]
Collection(s):

US Transportation Collection
Main Document Checksum:

urn:sha256:b4ecfbddc0502ff4442e8879828e0278c800bca2f675b6883eb56ffc53fe6f04

File Language:

English

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