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7. Conclusion
Pages 110-114

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From page 110...
... The survey results indicated that few practitioners have well-established, documented practices for handling RTOR in LOS analyses, and few are able to obtain actual RTOR counts. The literature review uncovered several prior studies that proposed methods of estimating RTOR volume and capacity.
From page 111...
... 7.3 Implementation of Research Products This research produced models of RTOR volume and capacity. Of these, the models of RTOR volume can be directly used by analysts to estimate RTOR volumes, which are an input parameter for the HCM analysis and several software tools that perform the same or similar analyses.
From page 112...
... This information tends to focus on traffic management and planning, including publications related to highway capacity analysis. In addition to methods of estimating RTOR volume and capacity, this research also produced guidance on site selection for RTOR based on a synthesis of existing publications on this topic, including documents such as highway design manuals compiled by state DOTs.
From page 113...
... Alternatives to prohibition of RTOR include, for example, the use of dynamic blank-out NO TURN ON RED signs that can be activated when a pedestrian phase is in service. Many agencies have adopted the Vision Zero perspective, which seeks to completely eliminate fatalities and serious injuries or the Safe System approach which seeks to reduce casualties, in part by reducing conflicts between motorized and nonmotorized traffic.
From page 114...
... The introduction of improved RTOR volume and capacity estimation methods would likely have an impact on the outcomes of signal timing optimization. Additional work is needed to assess the use of these methods in the development of signal timing plans.


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