Final answer:
In thickly settled areas or business districts, the speed limit is typically lower than on highways or open roads, for safety reasons and to accommodate pedestrian and vehicle traffic.
Step-by-step explanation:
In a thickly settled area or business district, the speed limit is typically lower than on highways or open roads. This is because there is usually more pedestrian and vehicle traffic in these areas, so slower speeds are necessary to ensure safety. For example, a common speed limit in a residential area is around 30 miles per hour or 50 kilometers per hour.