CMAQ Emissions Calculator Toolkit: Roundabouts Module

Federal Highway Administration (U.S.)

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CMAQ Emissions Calculator Toolkit: Roundabouts Module

2019-08-01
By Federal Highway Administration (U.S.)

[PDF-854.31 KB]

English

Details Supporting Files You May Also Like

Details:

Corporate Creators:

Federal Highway Administration (U.S.)
Corporate Contributors:

Federal Highway Administration Resource Center (U.S.)
Subject/TRT Terms:

[+]

Air Quality Analysis Congestion Management Systems Engine Idling Roundabouts
Resource Type:

Manual
Geographical Coverage:

United States
Corporate Publisher:

Federal Highway Administration (U.S.)
Abstract:

The roundabout project emission reductions calculator estimates the emissions benefit for installing a roundabout in place of a traditional signalized or un-signalized intersection. This tool is intended for a single or double lane roundabout with three or four approaches. 1 Emission reductions are estimated by calculating the reduction in idling emissions as a result of installing the roundabout. This is accomplished by calculating the post-build delay at the roundabout and subtracting it from the existing/no-build delay at the intersection. Emission reductions are calculated for peak and off-peak hours during a typical weekday.
Format:

PDF
Collection(s):

Federal Highway Administration
Main Document Checksum:

[+]

urn:sha256:be44a95a8c2af6c936468c5cf61aa2adcc36a694c6f7b974e1fc549b8576e878
Download URL:

https://rosap.ntl.bts.gov/view/dot/53730/dot_53730_DS1.pdf
File Type:

roundabouts.pdf

pdf

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