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Appendix B: Decision-Making Tool User Guide
Pages 154-169

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From page 154... ... This spreadsheet tool implements the framework, allowing the practitioner to input real project information and to experiment with cross section design alternatives. For a given design alternative, the tool gives the practitioner: • An indication of whether the proposed alternative meets acceptable minimum safe dimensions. Read the entire page →
From page 155... ... This tab provides the user with a few options to amend the proposed cross section so that it will fit within the available width: o they may add or remove cross sectional elements, o they may increase or decrease element widths, or o they may adjust their desired roadway speed or volume served. (Lowering either will typically lower width requirements.) Read the entire page →
From page 156... ... Edit Cross Section Edit Cross Section Input Project to Achieve to allocate Print Results Information Minimally Safe additional space Documentation Design (if applicable) Read the entire page →
From page 157... ... Cells with blue shading are for user input values; cells with orange shading are autocalculated outputs or intermediate steps. Buttons Several buttons are provided in the spreadsheet. Read the entire page →
From page 158... ... The inputs here serve as the basis for the cross section reallocation recommendations. Step 1.1 – Existing Cross Section In Step 1.1, fill out the table to represent the project roadway's existing cross section (see Figure 6) Read the entire page →
From page 159... ... If incorrect, adjust cross distance in feet section element widths. If those numbers change substantially along your project corridor, consider subdividing the project to sub corridors with consistent width and applying this methodology to each of those sub corridors. Read the entire page →
From page 160... ... what is The spreadsheet uses this value as an input parameter for the 85th percentile minimum safe facilities (e.g., type of recommended bike lane) Read the entire page →
From page 161... ... For example, Social, Mode Shift if the project goals include economic outcomes, then a "Yes" selection here will enable the summary sheet in Step 3B to demonstrate what cross section changes were made and how those have positive or adverse economic impacts. Background Planning 64-70 Climate Action Provide a "Yes" or "No" here for documentation purposes. Read the entire page →
From page 162... ... Figure 8: Step 1 Results and Navigation Instructions 162 Read the entire page →
From page 163... ... Step 2A.1 Minimum Safe Dimension The instructions at the top of the tab provide the user with the additional width needed to satisfy project goals. The goal of this tab is to adjust the proposed cross section until the "Needed Space" (shown as 7.5 in Figure 9) Read the entire page →
From page 164... ... The user has two basic categories of possible edits that can help the proposed cross section meet minimum safe requirements: Edit Roadway Characteristics The tool presents three options for fundamentally altering the roadway that will generally relax width requirements if the minimum safe cross section is not met (see Figure 11) Read the entire page →
From page 165... ... (a) With the existing condition of 30 miles per hour travel speeds and approximately 20,000 vehicles of daily traffic, the minimum bike lane requirements are a 6-foot-wide lane and a 2-foot-wide separation: 8 feet total per direction. Read the entire page →
From page 166... ... . Note a few details about this step: • The minimum safe dimensions are shown immediately below the cells with desired widths. Read the entire page →
From page 167... ... • Visual depiction of existing and proposed cross-section elements • Cross section width, available space (ROW or curb-to-curb width) , and available room given proposed project Step 3B Impact Summary This sheet provides the basic project details also included in Sheet 3A. Read the entire page →
From page 168... ... . The evaluation takes the following values as inputs: AADT, number of lanes, D factor, K factor, and traffic control at the critical downstream intersection.1 The sheet creates an all-day demand profile based on AADT and peak hour and peak direction input assumptions. Read the entire page →
From page 169... ... For the proposed cross section, press the yellow button to calculate the ADT and controlling downstream intersection and input the default D factor and K factor. You may edit these cells if you know the D factor or K factor, choose to use another downstream intersection type, or have a different proposed ADT number. Read the entire page →

From page 154...

... This spreadsheet tool implements the framework, allowing the practitioner to input real project information and to experiment with cross section design alternatives. For a given design alternative, the tool gives the practitioner: • An indication of whether the proposed alternative meets acceptable minimum safe dimensions.

Appendix B: Decision-Making Tool User Guide Pages 154-169

Appendix B: Decision-Making Tool User Guide
Pages 154-169