Final answer:
The speed limit on highways is typically higher than in urban areas, with interstate highways often having limits around 100 km/h (62 mph). Speed limits are enforced with a small leeway for speedometer inaccuracies, but excess speeding can lead to tickets.
Step-by-step explanation:
The speed limit on roads outside of alleys, urban or town roads is traditionally higher than within those areas. For example, while the speed limit in towns and cities might be around 60 km/hr (approximately 37 mph), highways commonly have higher limits to allow for faster travel over longer distances. Some interstate highways can have a speed limit of about 100 km/h, which converts to roughly 62 miles per hour or 27.78 meters per second. However, it's always essential to look for posted speed limit signs to follow the legal speed restrictions, as they can vary depending on the location and the type of road you are on. Moreover, it's important to remember for safety reasons, such as when crossing the road, that the average car width is about 2 m, so you should be able to cover at least 4 m safely before a car reaches you when you try to cross.
Enforcement of speed limits generally allows for a small amount of leeway, recognizing that most speedometers have a margin of error, though excessive speeding is likely to result in a traffic ticket. In any case, whether in towns or on highways, adhering to the speed limits is not just about compliance but also about safety for all road users.