OptionalisWhether the side road can actually be driven into.
A non-drivable side road still matters for a junction diagram, because the driver can see it, but the driver cannot take it by mistake.
The offset on the route, in meters, of the side road from the maneuver point (maneuverPoint).
The offset is absolute, so it is a positive integer even though the side road is before the maneuver on the route.
The side from which the road connects to the route.
Side road information.