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The LRSN_Odometer feature class is an Esri Roads and Highways Network (or more generically a Linear Referencing Method) that represents the California State Highway System (Interstates, US Highways and State Highways) using continuous statewide odometer measures. <\/SPAN><\/P>

LRSN_Odometer is not manually maintained, rather it is created (or \"derived\") from the LRSN_Postmile network, where the measures (the odometers) are the running accumulation of all the individual \"Postmile Routes\" that make up each route in the Postmile Network. <\/SPAN><\/P>

Users should be aware that Odometer values are duplicated at \"route breaks\" (physical gaps) in state highway routes. While this meets Caltrans requirements for a continuous measure system that is based on Postmiles, at these route breaks it results in ambiguity and the inability to specify a single location based on a single odometer value. <\/SPAN><\/P>

The Odometer Network is one of three Roads and Highways Networks maintained in Roads and Highways by Caltrans. 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