Routing API Developer's Guide


The functional class is used to classify roads depending on the speed, importance and connectivity of the road. It is an xs:byte type with the following restrictions:

  • Must satisfy: 1 ≤ value < 5

The value represents one of the five levels:

  • 1: allowing for high volume, maximum speed traffic movement
  • 2: allowing for high volume, high speed traffic movement
  • 3: providing a high volume of traffic movement
  • 4: providing for a high volume of traffic movement at moderate speeds between neighbourhoods
  • 5: roads whose volume and traffic movement are below the level of any functional class



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