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 104 Arizona Practice Test 115 Arkansas Practice Test 42 California Practice Test 84 Connecticut Practice Test 11 Delaware Practice Test 20 Georgia Practice Test 110 Illinois Practice Test 63 Kansas Practice Test 80 Kentucky Practice Test 39 Maryland Practice Test 95 Mississippi Practice Test 56 South Dakota Practice Test 72 Tennessee Practice Test 51 Wyoming Practice Test 103