What is the maximum speed for trucks and buses on “through streets” or boulevards clear of traffic, when so designated?

The maximum speed for trucks and buses on “through streets” or boulevards designed for unobstructed traffic flow is established at 30 kilometers per hour. This speed limit is often set to enhance safety on roads that accommodate larger vehicles, as they typically require more time to stop and have a larger turning radius compared to passenger vehicles.

The designation of such streets or boulevards indicates they are intended for more significant movement, so a controlled speed helps mitigate risks associated with higher speeds while still promoting the efficient transit of trucks and buses. By setting the limit at this speed, regulations balance the need for traffic efficiency with the safety of all road users, including pedestrians and smaller vehicles.

The other speed options would either be too low, possibly hindering the intended use of these routes for larger vehicles, or too high, which could increase the risk of accidents. Thus, 30 kph serves as a suitable maximum speed in this context.