A list of functional classes separated by commas (,), to return results for. The
functional class is used to group roads depending on speed, importance, and
connectivity.
Functional classes are integers from 1 to 5 inclusive where functional class 1 are
the most important and functional class 5 are the least important. The table below
describes the roads that fall into each class.
| Functional Class | Description |
|---|
| 1 | These roads are meant for high volume, maximum speed traffic between and through major metropolitan areas. There are very few, if any, speed changes. Access to this road is usually controlled. |
| 2 | These roads are used to channel traffic to Main Roads (functionalClass=1) for travel between and through cities in the shortest amount of time. There are very few, if any speed changes. |
| 3 | These roads interconnect First Class Roads (2) and provide a high volume of traffic movement at a lower level of mobility than First Class Roads (2). |
| 4 | These roads provide for a high volume of traffic movement at moderate speeds between neighborhoods. These roads connect with higher Functional Class roads to collect and distribute traffic between neighborhoods. |
| 5 | These roads' volume and traffic movements are below the level of any other road. |
