The state-interest component of the statewide multimodal transportation plan shall include a state freight rail plan, which shall fulfill the statewide freight rail planning requirements of the federal government, identify freight rail mainline issues, identify light-density freight rail lines threatened with abandonment, establish criteria for determining the importance of preserving the service or line, and recommend priorities for the use of state rail assistance and state rail banking program funds, as well as other available sources of funds. The plan shall also identify existing intercity rail rights-of-way that should be preserved for future transportation use.