Driving to the conditions is also vague. Some people feel safe driving near the limit in snow, some think you have to go 40 under. Now that also depends on if you have snow tires or not too. If you don’t, you shouldn’t be trying to reach the limit unless the road is clear and dry. But even traction is reduced once it gets near freezing regardless.
In the end, it’s a judgment call, and pulling the person over is only ever going to make the situation worse. They won’t suddenly start going faster or find a different route the next day.
What’s the range allowed? There are plenty of places with minimums, but many have such a wide window that they may as well not bother.
Driving to the conditions is also vague. Some people feel safe driving near the limit in snow, some think you have to go 40 under. Now that also depends on if you have snow tires or not too. If you don’t, you shouldn’t be trying to reach the limit unless the road is clear and dry. But even traction is reduced once it gets near freezing regardless.
In the end, it’s a judgment call, and pulling the person over is only ever going to make the situation worse. They won’t suddenly start going faster or find a different route the next day.