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Table 3 Validation rules implemented on spatial data quality fields (based on PMIS data)

From: GIS-based visualization of integrated highway maintenance and construction planning: a case study of Fort Worth, Texas

Reference System Spatial Data Attribute Valid Value Range Valid format
Texas Reference Marker System Beginning Reference Marker Number 0– 668 Integer
Ending Reference Marker Number 0– 668 Integer
Beginning Reference Marker Displacement 0.00 – 0.99 Decimal
Ending Reference Marker Displacement 0.00 – 0.99 Decimal
Mile Point Reference System Beginning Mile Point 0.00 – 50.00 Decimal
Ending Mile Point 0.00 – 50.00 Decimal
Distance From Origin (DFO) *Beginning DFO 0.00 – 454.50 Decimal
*Ending DFO 0.00 – 454.50 Decimal
Complementary *Highway Number “??????-?G” String
  1. *GIS-compatible data attributes