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WHAT IS LINEAR REFERENCING?
Linear referencing is the method of storing geographic
locations by using relative positions along a measured
linear feature. Distance measures are used to locate
events along the line
Thank you ESRI Help
WHY?
• MAP-21 Moving Ahead for Progress in the 21st Century
• Federal Mandate
• Persistent and maintained LRS
• Federal reporting
• Charms on a necklace
• Future Requirements
• More stuff coming
ARNOLD
• All Roads Network of Linear Reference Data
• HPMS compatible
• All public roads
• Included/not included
• Political boundaries
CHALLENGES
• HUTF
• From 9,000 to 90,000 miles
• Gaps?
• Naming Convention
• Intelligent vs Semi-intelligent vs Non-intelligent