If speed limit is not posted, in a school zone/business district it is?

In a school zone or business district, the default speed limit is set at 20 mph when no specific speed limit signs are posted. This regulation aims to enhance safety in areas where there is a higher volume of pedestrians, particularly children in school zones and patrons near businesses.

The lower speed limit helps drivers react more quickly to potential hazards, such as children crossing the street or pedestrians interacting with vehicles. This is particularly important in school zones, where safety is paramount. Additionally, compliance with these speed limits contributes to creating a safer environment for all road users, as it encourages more cautious driving behavior in areas with heightened activity.

The other options represent speed limits that are either too high or not appropriate for these specific areas, which underlines the need for established lower limits in places with increased pedestrian traffic.