Question What does a single dashed white line separating traffic mean? Answers Drivers may pass, even if it could be dangerous. Lanes move in opposite directions. Drivers may not pass. Drivers may pass if it is safe to do so. Explanation White lines separate lanes of traffic that are moving in the same direction. Dashed white lines may be crossed to pass or change lanes, if it is safe to do so. Pass your DMV Written Test with flying colors Take me to the cheat sheet Wisconsin This questions appears in the following tests: Colorado Practice Test 7 Colorado Practice Test 4 District Of Columbia Practice Test 19 Florida Practice Test 24 Hawaii Practice Test 20 Idaho Practice Test 19 Idaho Practice Test 28 Indiana Practice Test 21 Indiana Practice Test 20 Iowa Practice Test 26 Iowa Practice Test 1 Louisiana Practice Test 36 Louisiana Practice Test 4 Maine Practice Test 19 Massachusetts Practice Test 15 Michigan Practice Test 26 Minnesota Practice Test 13 Minnesota Practice Test 16 Missouri Practice Test 4 Montana Practice Test 13 Montana Practice Test 6 Nebraska Practice Test 2 Nebraska Practice Test 23 Nevada Practice Test 42 New Hampshire Practice Test 10 New Hampshire Practice Test 35 New Jersey Practice Test 6 New York Practice Test 18 North Carolina Practice Test 12 North Dakota Practice Test 18 Oklahoma Practice Test 13 Oregon Practice Test 22 Oregon Practice Test 26 Oregon Practice Test 35 Texas Practice Test 1 Utah Practice Test 19 Utah Practice Test 13 Vermont Practice Test 14 Virginia Practice Test 19 Washington Practice Test 4 Washington Practice Test 14 Wisconsin Practice Test 12