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21 Source: UT-CTR. Figure 3-1. Land uses and conflicts adjacent to freight activity. Such barriers typically result in increased production and Some of these barriers can be specific to a particular mode distribution costs. In this context, examples of potential bar- (e.g., highway and road design impacts on trucking activities riers or interference with freight-transportation-related ser- or dredging impacts on waterway transportation), while other vices include the following: barriers may be more general across modes (e.g., limitations on hours of operation). Barriers not only affect freight activi- Speed restrictions; ties along particular corridors and facilities, but they also Limitations on hours of operation; may affect route choices and the ability to access freight and Height and clearance impacts; manufacturing facilities. For example, if roads are designed Size and weight limitations; with turning radii that are too tight, particular types of trucks Corridor design impacts; may not be able to use these routes or access facilities that use Environmental permitting; these roads. Limitations on dredging operations and/or depositing of dredged material; Conflicts and Barriers Matrices Backlog of waterway lock or channel maintenance; Hazardous material (hazmat) routing restrictions; and The types of conflicts and resulting barriers to efficient freight Gentrification that displaces, impedes, or increases the transportation are summarized in the conflicts and barriers costs of freight transportation. matrices found in Appendix A.