Add Yahoo as a preferred source to see more of our stories on Google. Aug. 7—Question: What is the purpose of the solid white lines separating traffic moving in the same direction? For example, the ...

Before we expound, let’s let Mike explain himself. “When merging into another lane, sometimes I find myself crossing the white line on the freeway,” he wrote to us here at Traffic Q&A headquarters.

Question: What is the purpose of solid white lines, separating traffic moving in the same direction? Example the ones leading up to the Lowry tunnel in Minneapolis. Does it make it illegal to change ...

Question: I enjoy reading your column. I have been driving for a number of years but still get confused as to what all the white road markings mean. I know what the white dashes on a road/highway mean ...

Question: Can you explain what the lines on the highways and streets indicate? I feel like a lot of people can’t figure it out. Thanks. Answer: I sure can. Pavement markings direct and regulate ...

Question: I enjoy reading your column. I have been driving for a number of years but still get confused as to what all the white road markings mean. I know what the white dashes on a road/highway mean ...

A. Yes, just be careful – for safety and for legal reasons. First, look around for a black and white sign that prohibits you crossing over the line – if none, you can slide over it, says Mitch Smith, ...

Question: What is the purpose of the solid white lines separating traffic moving in the same direction? For example, the ones leading up to the Lowry Tunnel in Minneapolis. Does it make it illegal to ...

A. Yes, just be careful – for safety and for legal reasons. First, look around for a black and white sign that prohibits you crossing over the line – if none, you can slide over it, says Mitch Smith, ...