Posted Speed Limit Setting Procedure and Tool: User Guide (2021) / Chapter Skim
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Pages 33-37
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From page 33... ...
33 Overview of SLS-Tool Requirements The SLS-Tool is designed to help practitioners assess and establish consistent speed limits for segments of streets and highways. The tool combines customary engineering studies with context-sensitive considerations to identify appropriate speed limits.
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From page 34... ...
34 Posted Speed Limit Setting Procedure and Tool: User Guide Undeveloped, and Full-Access) , and the user must select the appropriate worksheet for each analyzed segment.
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From page 35... ...
Speed Limit Setting Tool 35 A legend is provided on the top portion of the main data entry area to summarize the colorcoding patterns. A button labeled "Clear all data" is also provided to allow the user to clear input data and restart the analysis with a blank worksheet.
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From page 36... ...
36 Posted Speed Limit Setting Procedure and Tool: User Guide SLSG Upper Speed Limit Checka Lower Speed Limit Check Limited-Access Depends on the state. The SLS-Tool has 85 mph as the upper limit because it is the highest currently allowed in the United States.
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From page 37... ...
Speed Limit Setting Tool 37 The default values are chosen to reflect ideal conditions. That is, a site with conditions equal to the default values will have its speed limit set based on the closest 85th percentile speed.
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