DashRouteOptionsUpdate

A scale from -1 to 1, where -1 biases the route against alleys and 1 biases the route toward alleys. If null, default is 0, which is neutral.

Avoid ferry rider across waterways.

Avoid highways.

Avoid roads with tolls.

The max vehicle width in meters. If this parameter is provided, the Directions API will compute a route that includes only roads with a width limit greater than or equal to the max vehicle width. max_width must be between 0 and 10 meters. The default value is 1.9 meters.

The user parameter of the routing request.