According to Charles Marohn, municipal engineer and planner, a stroad is a bad combination of two types of vehicular pathways: part street and part road. He defines a stroad as a high-speed road with many turnoffs which lacks safety features and says that they are common in the United States and Canada.
Stroads are too sprawling and hostile to be good streets, and they are too busy and complicated to be good roads. They are inefficient, unsafe, expensive, and ugly.
Street: a "complex environment where life in the city happens", with pedestrians, cars, buildings close to the sidewalk for easy accessibility, with many entrances and exits to and from the street, and with spaces for temporary parking and delivery vehicles
Road: a "high-speed connection between two places" with wide lanes, limited entrances and exits, and which are generally straight or have gentle curves.