Final answer:
In New Jersey, the speed limit in school zones, business, or residential areas is typically 25 miles per hour, with some leeway in enforcement. It is always important to observe local traffic regulations for any variations. Exceeding the speed limit by a small amount may not attract police attention, but compliance with the posted limits is essential for safety.
Step-by-step explanation:
The speed limit in school zones, business, or residential areas in New Jersey is typically set to ensure the safety of pedestrians and drivers in these densely populated and high-traffic areas. For school zones, the limit is often 25 miles per hour during school hours. In business or residential areas, the NJ speed limit can also be set at 25 miles per hour. It is crucial to adhere to these limits to maintain road safety. In residential areas, 50 kilometers per hour is about 31 miles per hour, which is a more general speed limit for such zones. However, it is important to always check specific local regulations as speed limits can vary based on the municipality.
When it comes to police enforcement, there may be a small margin of leeway due to inaccuracies in speedometers as compared to radar measurements. It is commonly understood that exceeding the posted speed limit by a couple of miles per hour is unlikely to attract police attention, although this does not change the legal limit and should not be relied upon for habitual speeding habits.