Question Which of the following blocks the smooth flow of traffic? Answers Slowing down to look at collision scene. Avoiding unnecessary lane changes. Using public transportation instead of your vehicle. Explanation Rubbernecking (the practice of slowing down to look at collisions or other out-of-the-ordinary things) contributes to traffic congestion and should be avoided. Pass your DMV Written Test with flying colors Take me to the cheat sheet California This questions appears in the following tests: Alabama Practice Test 30 Alabama Practice Test 2 Arizona Practice Test 26 Arkansas Practice Test 17 California Practice Test 16 California Practice Test 21 Connecticut Practice Test 23 Delaware Practice Test 24 District Of Columbia Practice Test 5 Kansas Practice Test 11 Kentucky Practice Test 10 Maine Practice Test 1 Maryland Practice Test 16 Mississippi Practice Test 5 New Mexico Practice Test 6 New York Practice Test 17 Oklahoma Practice Test 16 South Carolina Practice Test 15 South Dakota Practice Test 16 Tennessee Practice Test 11 Wisconsin Practice Test 37 Wyoming Practice Test 32 Wyoming Practice Test 28