Travel time intelligently calculated based on walking/driving

Currently, I get a notification before each event in my calendar with a location, telling me when it is time to leave for that event. I can configure this "time to leave" notification based on an assumption that I drive to all events, or an assumption that I walk to all events. I would prefer for the "time to leave" be calculated with a more sophisticated rules: if the walking distance is less than 20 minutes, assume I will walk, otherwise assume I will drive. Is there a way to configure Calendar, Maps, or notifications to provide this functionality?