Includes Errata
Bureau of Land Management (BLM) Technical Reference 9100-1 describes best practices for planning and conducting transportationrelated route inventories. Route inventories identify all existing transportation-related linear features, including potential roads, primitive roads, trails, and travel associated linear disturbances within a landscape unit. Additional transportation-related linear features, such as airstrips, railroads, and rivers, may also be included as necessary. This inventory methodology is a tool that may be used to help with land use plan development, including the quantification of issues, description of the environment, formulation of land use plan alternatives, conducting of impact analyses, supporting land use planning decisions, and monitoring resource condition changes over time. The BLM has established minimum national data standards for transportation-related linear features (roads, primitive roads, and trails), including Interagency Trail Data Standards (for National Scenic and National Historic Trails) used with transportation-related route inventories. The procedures described herein represent standard and accepted methods of planning for and conducting route inventories by using these minimum national data standards.
Although the primary audience for the present Technical Reference is the Field Office resource specialist responsible for conducting inventories associated with comprehensive travel management, the content is equally useful for engineers, cartographers, geographic information system specialists, volunteers, contractors, and students assigned to the data collection process.