Preferred truck routes feature class (Preferred_Truck_Routes)

The Preferred_Truck_Routes is a feature class built from links identified as part of a preferred truck route. The types of routes vary between countries.

A road segment can also be part of a general transport preferred route, and may be part of multiple preferred truck routes. Preferred_Truck_Routes information is also held on Streets and Routing_Streets and built into the HERE GIS Data Suite network dataset.

For a description of the attributes OBJECTID, Shape, and GlobalID, see Esri® system fields.

Field name Data type Description

PREFERRED_ROUTE_TYPE String (50) Description of the preferred route type, for example B Double Route, Unspecified (general truck route)

Field name	Data type	Description
PREFERRED_ROUTE_TYPE	String (50)	Description of the preferred route type, for example B Double Route, Unspecified (general truck route)
FUNCTIONAL_CLASS	Integer (4)	The functional class of street segments defines the segment's role within the hierarchical street network and determine logical and efficient routes in routing applications. `FUNCTIONAL_CLASS = 1` roads allow for high volume, maximum speed traffic movement between and through major metropolitan areas. `FUNCTIONAL_CLASS 1` applies to roads with very few, if any, speed changes. `FUNCTIONAL_CLASS 2` roads channel traffic to roads with `FUNCTIONAL_CLASS 1` for travel between and through cities in the shortest amount of time. `FUNCTIONAL_CLASS 2` roads have very few, if any speed changes that allow for high volume, high speed traffic movement. `FUNCTIONAL_CLASS 3` roads interconnect `FUNCTIONAL_CLASS 2` roads and provide a high volume of traffic movement at a lower level of mobility than `FUNCTIONAL_CLASS 2` roads. `FUNCTIONAL_CLASS 4` roads provide for a high volume of traffic movement at moderate speeds between neighbourhoods. These roads connect with higher functional class roads to collect and distribute traffic between neighbourhoods. `FUNCTIONAL_CLASS 5` roads' volume and traffic movement are below the level of any other functional class. In addition, walkways, truck only roads, bus only roads, and emergency vehicle only roads receive `FUNCTIONAL_CLASS 5` roads.
ISO_COUNTRY_CODE	String (3)	ISO 3 character country code

FUNCTIONAL_CLASS

Integer (4)

The functional class of street segments defines the segment's role within the hierarchical street network and determine logical and efficient routes in routing applications.

FUNCTIONAL_CLASS = 1 roads allow for high volume, maximum speed traffic movement between and through major metropolitan areas. FUNCTIONAL_CLASS 1 applies to roads with very few, if any, speed changes.

FUNCTIONAL_CLASS 2 roads channel traffic to roads with FUNCTIONAL_CLASS 1 for travel between and through cities in the shortest amount of time. FUNCTIONAL_CLASS 2 roads have very few, if any speed changes that allow for high volume, high speed traffic movement.

FUNCTIONAL_CLASS 3 roads interconnect FUNCTIONAL_CLASS 2 roads and provide a high volume of traffic movement at a lower level of mobility than FUNCTIONAL_CLASS 2 roads.

FUNCTIONAL_CLASS 4 roads provide for a high volume of traffic movement at moderate speeds between neighbourhoods. These roads connect with higher functional class roads to collect and distribute traffic between neighbourhoods.

FUNCTIONAL_CLASS 5 roads' volume and traffic movement are below the level of any other functional class. In addition, walkways, truck only roads, bus only roads, and emergency vehicle only roads receive FUNCTIONAL_CLASS 5 roads.

ISO_COUNTRY_CODE String (3) ISO 3 character country code