What does arrows on the roadway mean
1 shows which lane you must use
2 indicate reserved lanes
3 indicate that you can not pass or change lanes
4 indicate hov lanes

To be honest, I could say 3 indicate that you can not pass or change lanes, because when it comes to an arrow on the roadway, it means that like for another answer, you cannot make a turn because it is illegal. So I could suggest 3 indicate that you can not pass or change lanes.