Design and Management of Historic Roads (2012) / Chapter Skim
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Pages 26-44
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From page 26... ...
Chapter 3: Many Routes Go In the Right Direction: Using Inherent Flexibility 3-1 3.0 Many Routes Go In the Right Direction: Using Inherent Flexibility 3.1 Background on Using Inherent Flexibility For any transportation project to end well, it has to start well. For projects involving historic roads, one of the most important factors in starting out correctly is for engineers and historic preservationists to understand the decision making flexibility available in their policies and procedures and then to apply it to develop site-specific, balanced solutions.
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From page 27... ...
Chapter 3: Many Routes Go In the Right Direction: Using Inherent Flexibility 3-2 relative to the long-term safety performance of specific designs and site conditions. States and municipalities both have endorsed using flexibility and adopted a variety of tools for achieving balanced solutions, from legislative mandates to state design criteria.
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From page 28... ...
Chapter 3: Many Routes Go In the Right Direction: Using Inherent Flexibility 3-3 In Oregon, the state legislature enacted a law enabling the preservation and enhancement of the Columbia River Highway Historic District. This legislation gives the State Transportation Agency permission to do what is necessary, including acquiring property, to preserve the scenic 1910s roadway and its setting for limited vehicular and recreational use, and it calls on the agency to work with a structured advisory committee and other agencies.
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From page 29... ...
Chapter 3: Many Routes Go In the Right Direction: Using Inherent Flexibility 3-4 3.2.2 Administrative Actions Administrative action by agency leadership can be used to define how specific features or types of projects will be treated. They can be as precise as New Hampshire DOT‘s 1990 Roadside Stone Wall Reconstruction Policy that makes reconstruction of stone walls an allowable project activity (Figure 3.3)
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From page 30... ...
Chapter 3: Many Routes Go In the Right Direction: Using Inherent Flexibility 3-5 cost effective for projects that do not require major horizontal or vertical realignment as supported by the large body of research outlined below. Missouri Department of Transportation "Right-Sizing" In 2005, the Missouri Department of Transportation (MDOT)
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Chapter 3: Many Routes Go In the Right Direction: Using Inherent Flexibility 3-6 located in a densely populated part of the state. The agency worked with a multi-discipline stakeholder committee (working committee)
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Chapter 3: Many Routes Go In the Right Direction: Using Inherent Flexibility 3-7 The AASHTO policy and guidance are founded on NCHRP‘s 1994 Report 362 that demonstrated less-stringent standards for existing roads could save money without compromising safety. The study represents a watershed in thinking about safety and design criteria, and it has probably done more to promote flexibility in highway design and thinking about what really underlies Green Book design criteria than any other research to date.
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From page 33... ...
Chapter 3: Many Routes Go In the Right Direction: Using Inherent Flexibility 3-8 deciding to retain or modify historically significant roadway features, like trees and walls along the right of way or intersection design. 3.2.6 Use Interactive Highway Safety Design Module and Highway Safety Manual to Support Changes to Geometry AASHTO and FHWA have developed tools that can quantify the safety and operational effects of geometric design and support using flexibility in decision making.
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From page 34... ...
Chapter 3: Many Routes Go In the Right Direction: Using Inherent Flexibility 3-9 treatments, such as the use of traffic calming devices, roadside landscaping, or the use of form liner finishes that mimic historical materials like stone are not historic preservation. Such treatments are more appropriately considered as beautification rather than preservation or conservation of distinguishing historic features.
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From page 35... ...
Chapter 3: Many Routes Go In the Right Direction: Using Inherent Flexibility 3-10 Figure 3.4. When history is the context, then history, and not conjecture or beautification, should be used to inform the design of new features, particularly in historic districts.
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From page 36... ...
Chapter 3: Many Routes Go In the Right Direction: Using Inherent Flexibility 3-11 Practice has demonstrated that the best defense against tort liability is procedures for thoroughly documenting design decision processes that balance safety with other goals, like the preservation of significant features of historic roads. Most transportation agencies already have in place such documentation procedures to demonstrate that the nominal and substantive safety aspects of the design were evaluated with a thorough assessment of the selected design values.
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From page 37... ...
Chapter 3: Many Routes Go In the Right Direction: Using Inherent Flexibility 3-12 in time or precluding change. Indeed, the Standards confirm that historic properties must be updated to remain current and viable, and they prescribe ways to make improvements and preserve historic significance.
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From page 38... ...
Chapter 3: Many Routes Go In the Right Direction: Using Inherent Flexibility 3-13 1927 and 1963. This PA came about as a result of a series of on-going NYSDOT tasks to address safety and operational deficiencies and concerns.
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Chapter 3: Many Routes Go In the Right Direction: Using Inherent Flexibility 3-14 designating it a scenic byway. FHWA‘s National Scenic Byways Program3 links promoting leisurely travel opportunities with grass roots efforts to protect and enhance roads with cultural, historic, archaeological, recreational, natural, and scenic values.
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Chapter 3: Many Routes Go In the Right Direction: Using Inherent Flexibility 3-15 Figure 3.5. When the Road Is Located In a Historic District.
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From page 41... ...
Chapter 3: Many Routes Go In the Right Direction: Using Inherent Flexibility 3-16 The Scenic Byways program goes further and addresses the inability of the National Historic Preservation Act of 1966 to save historic properties by coupling designation with stakeholders committing to preserve and interpret the resources. This includes proactive activities to ensure a broad consensus of understanding about what is being preserved, why it is important, and a methodology for specifically how preservation and enhancement will be accomplished.
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From page 42... ...
Chapter 3: Many Routes Go In the Right Direction: Using Inherent Flexibility 3-17 information on why the design criteria cannot be met. Proportional cost increases (i.e.
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From page 43... ...
Chapter 3: Many Routes Go In the Right Direction: Using Inherent Flexibility 3-18 to work cooperatively toward the originally stated goals and objectives. Plans are only as effective as the sincerity of owners and managers in implementing it.
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From page 44... ...
Chapter 3: Many Routes Go In the Right Direction: Using Inherent Flexibility 3-19 Harshbarger, J Patrick, et al.
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