Question This road sign means: Answers All traffic must go straight. Turning on a red signal is prohibited. Left turns are prohibited. Explanation Regulatory signs provide notice to road users of traffic laws that must be obeyed. When posted at an intersection, this sign tells drivers that turning right or left on a solid red signal is prohibited. Pass your DMV Written Test with flying colors Take me to the cheat sheet Maryland This questions appears in the following tests: Alabama Practice Test 17 Arizona Practice Test 59 Arkansas Practice Test 69 California Practice Test 1 Connecticut Practice Test 107 Delaware Practice Test 98 Georgia Practice Test 90 Illinois Practice Test 29 Kansas Practice Test 58 Kentucky Practice Test 19 Maryland Practice Test 29 Mississippi Practice Test 76 South Dakota Practice Test 62 Tennessee Practice Test 103 Wyoming Practice Test 49