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The OHP requires slightly higher mobility standards 5. Mobility ~ (maximum volume-to-capacity ratios) for freight routes Standards'~' than other Statewide Highways. This means that slightly less congestion is to be planned for the OHP freight routes. For example, the maximum volume to capacity ratio for a Statewide Highway inside an urban growth boundary on a freight route is .75, while a Statewide Highway inside an urban growth boundary not on a freight route is .80. This will lead to a more rigorous standard for review of plan amendments and zone changes. (This particular example is based on Table 6, page 80 of the OHP (Non-MPO outside of STAs where non-freeway speed limit < 45 mph). The OHP states that ODOT will invest in thicker highway 6. Pavement ( ) pavements on designated freight routes. It also says that Preservation"~ Statewide Highways should be maintained at a higher condition than Regional and District Highways. However, due to limited funding, being part of the State Highway Freight System is not a major factor in pavement management or maintenance. In practice, pavement thickness is primarily based on field tests, condition of the roadway, truck counts and truck configurations. Being part of the State Highway Freight System is a factor 7. Highway ~ in roadway design and is addressed in the Highway Design Design~ Manual. In designing a roadway, the Highway Design Manual takes into consideration highway functional classification, the State Highway Freight System, truck volumes and configurations, mobility standards and other factors. Highway design issues impacted by the State Highway Freight System designation include typical roadway section widths, median barrier, weigh stations and intersection design and their attendant cost implications. Depending on the circumstances, a design exception may be needed to the Highway Design Manual standards. HB2041 (ORS 366.215) states that the Oregon Transportation Commission may not permanently reduce the vehicle-carrying capacity of an identified freight route when altering, relocating, changing or realigning a state highway unless safety or access considerations require the reduction. (An exemption can be granted if commission finds it in the best interest of the state and freight movement is not unreasonably impeded.) DRAFT September 1, 2004 6