Diverging Diamond Interchange Informational Guide, Second Edition (2021) / Chapter Skim
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Pages 215-220
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215 This chapter provides an overview of the general considerations of constructing and maintaining a DDI. It also discusses law enforcement considerations.
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216 Diverging Diamond Interchange Informational Guide • Is additional cross-section width necessary to accommodate future traffic (i.e., motor vehicles, bicycles, and pedestrians)
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Construction and Implementation 217 Exhibit 8-2 shows the construction staging used at one of the UDOT sites where a prefabricated bridge was rolled into place. The middle picture shows the short transition in which the structure was installed in less than 1 day.
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218 Diverging Diamond Interchange Informational Guide factor in how much interchanges cost, making the DDI particularly attractive if being considered as a retrofit of an existing structure. The actual costs of designing and constructing a DDI are highly variable based on the factors described above and other site-specific elements, particularly if a design is newly constructed versus a retrofit.
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From page 219... ...
Construction and Implementation 219 Through expert surveys and interviews, Brown et al. developed maintenance of traffic plans for various lane closure configurations during routine maintenance (2)
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