10 seconds. If you're not overtaking anything within 10 seconds, you should pull into the inside lane.
This is what I was taught in advanced driver training. However, in practice I use 7 seconds, because I find 10 seconds a little too far to easily estimate by eye. I end up thinking "is that 10 seconds? I'm not sure, maybe" then by the time I figure out it was more than 10 seconds it is now less than 7.
10 seconds. If you're not overtaking anything within 10 seconds, you should pull into the inside lane.
This is what I was taught in advanced driver training. However, in practice I use 7 seconds, because I find 10 seconds a little too far to easily estimate by eye. I end up thinking "is that 10 seconds? I'm not sure, maybe" then by the time I figure out it was more than 10 seconds it is now less than 7.