Highway Lane Designations
These Resources explain the numbering and nomenclature of highway lane designations.
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NTMIC "Lane Designation Terminology"
This document from the National Traffic Incident Management Coalition provides a common terminology for use by responders during traffic incidents when identifying the location of the incident and the preferred position for arriving response vehicles and equipment. The document encourages response agencies to adopt this common terminology.
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Highway Lane Designations and Terminology
This reference card from the Emergency Responder Safety Institute illustrates the accepted highway lane numbering system and nomenclature for describing roadways in consistent terms.