Practical Highway Design Solutions (2013) / Chapter Skim
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13 This chapter provides a description and discussion of each of the six (Missouri, Idaho, Kentucky, Kansas, Oregon, and Utah) state's Practical Design policy and procedures.
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14 practical Design process and guidelines MoDOT's Practical Design process was first documented in Practical Design Implementation (21)
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15 state that provides specific design guidance under its Practical Design policy.
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16 zone. Rather than create a wider clear zone at high cost, it was determined that the application of edge rumble strips would be a more cost-effective alternative based on its crash reduction potential.
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17 standards that are appropriate to the context of the surroundings. Our goal is to get the best value for the least cost.
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18 VE is normally reserved for larger-scale projects with a high potential for savings, its underlying principle of identifying less expensive, but acceptable, design elements is applicable to Practical Solutions, which also has the objective of satisfying the project purpose and need cost-effectively. Consideration of Safety Impacts A stated goal of ITD's Practical Solutions policy is that ".
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19 it had to use available funds more efficiently; hence, Practical Solutions emerged as the means to achieve that goal. The development of Practical Solutions was a top down process, starting with the KYTC highway engineer, who with other staff examined Missouri's program.
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20 several design elements -- pavement and shoulder widths, curve radius, pavement and shoulder cross slopes, grade, stopping sight distance, and passing sight distance -- for three classes of roads: two-lane arterials, rural collectors, and rural local roads. These tables are found in Appendix F
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21 Practical Solutions and 3R Improvements KYTC has guidelines for 3R projects. It believes that in a way they have been applying Practical Solution principles to 3R projects for many years.
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22 practical improvement process and guidelines KDOT initially programs projects in its planning division. Projects reach the design office with a general scope and budget, which usually cannot be exceeded.
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23 and where there may be historical, environmental, and social concerns that need to be considered. In such situations, the goal may not be to reduce the cost of the project but to address those needs cost-effectively.
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24 TABLE 4 SAVINGS OF PRACTICAL IMPROVEMENT PROJECTS IN KANSAS Option Shoulder Width Foreslope Rate Clear Zone Width, ft Construction Cost A 10 6 30' $8,670,000 B 10 4 34' $8,340,000 C 8 6 30' $8,350,000 D 8 4 34' $7,930,000 TABLE 5 KDOT'S PRACTICAL IMPROVEMENTS ALTERNATE PROJECT SCOPE -- ExAMPLE 3
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25 oregon DepartMent of transportation Background ODOT initiated its Practical Design policy in 2009. As in other states, it was instituted as a strategy to stretch scarce dollar resources.
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26 SCOPE Integration Questions: ✓ Does this project address the purpose and need? Does it meet the project goals?
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FIGURE 3 Project delivery life-cycle model for Oregon. Source: ODOT Practical Design Guidebook (28)
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28 d. Right Way: i.
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29 4. Determine the project objective 5.
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30 decision making for Practical Design to be successful. The success indicators include: • All proposed projects have a clear objective statement that describes how the project will help the system meet the Final Four.
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