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From page 27... ... NCHRP Web-Only Document 291: Development of a Posted Speed Limit Setting Procedure and Tool 15 CHAPTER 4. CONCLUSIONS, OPTIONS, AND SUGGESTED RESEARCH CONCLUSIONS The process of selecting a posted speed limit value for a roadway segment can be influenced by many factors, including engineering concerns, roadway characteristics, human factors such as the way drivers react to the roadway environment in terms of the speed they select, and policies including established agency laws or protocols along with political pressures. Read the entire page →
From page 28... ... NCHRP Web-Only Document 291: Development of a Posted Speed Limit Setting Procedure and Tool 16  Develop and conduct training on the SLS-Procedure, SLS-Tool, and user guide. SUGGESTED RESEARCH Suggestions for additional research include the following:  Investigate current statutory speeds in all 50 states and develop a roadmap of how a uniform set of best-practice statutory speeds could be established across the country. Read the entire page →
From page 29... ... NCHRP Web-Only Document 291: Development of a Posted Speed Limit Setting Procedure and Tool 17  Explore alternative approaches for city streets. Several cities -- such as Portland, Oregon; Boston, Massachusetts; New York City, New York; Seattle, Washington; and others -- are experimenting with alternative approaches for city streets. Read the entire page →
From page 30... ... NCHRP Web-Only Document 291: Development of a Posted Speed Limit Setting Procedure and Tool 18 seventh edition with the addition of a context classification, "Industrial, Warehouse, or Port Roads." The SLS-Tool should be updated to incorporate this new context classification of "Industrial, Warehouse, or Port Roads."  Revise the average crash rates. The crash rates in USLIMITS2 (11) Read the entire page →

From page 27...

... NCHRP Web-Only Document 291: Development of a Posted Speed Limit Setting Procedure and Tool 15 CHAPTER 4. CONCLUSIONS, OPTIONS, AND SUGGESTED RESEARCH CONCLUSIONS The process of selecting a posted speed limit value for a roadway segment can be influenced by many factors, including engineering concerns, roadway characteristics, human factors such as the way drivers react to the roadway environment in terms of the speed they select, and policies including established agency laws or protocols along with political pressures.

Read the entire page →

From page 28...

... NCHRP Web-Only Document 291: Development of a Posted Speed Limit Setting Procedure and Tool 16  Develop and conduct training on the SLS-Procedure, SLS-Tool, and user guide. SUGGESTED RESEARCH Suggestions for additional research include the following:  Investigate current statutory speeds in all 50 states and develop a roadmap of how a uniform set of best-practice statutory speeds could be established across the country.

Read the entire page →

From page 29...

... NCHRP Web-Only Document 291: Development of a Posted Speed Limit Setting Procedure and Tool 17  Explore alternative approaches for city streets. Several cities -- such as Portland, Oregon; Boston, Massachusetts; New York City, New York; Seattle, Washington; and others -- are experimenting with alternative approaches for city streets.

Read the entire page →

From page 30...

... NCHRP Web-Only Document 291: Development of a Posted Speed Limit Setting Procedure and Tool 18 seventh edition with the addition of a context classification, "Industrial, Warehouse, or Port Roads." The SLS-Tool should be updated to incorporate this new context classification of "Industrial, Warehouse, or Port Roads."  Revise the average crash rates. The crash rates in USLIMITS2 (11)

Read the entire page →

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