California CDL Traffic Signals & Road Markings Test 2026

Beyond static signs, a commercial driver has to read traffic signals and pavement markings correctly in real time, and this California CDL signals and markings test rounds out the sign-related material on the general knowledge exam. Flashing signals, lane control lights, and the different pavement line colors and patterns all carry specific meanings a permit candidate needs to know.

Expect questions on the difference between a flashing red and a flashing yellow signal, what a solid versus broken pavement line permits, and how lane markings near a California CDL test route indicate merging, passing restrictions, or dedicated turn lanes. The California Commercial Driver Handbook treats signals and markings as a single connected system with signs, since all three work together to guide a large vehicle safely through changing traffic conditions.

This category closes out the sign-based material inside the California CDL general knowledge exam, complementing the shapes, regulatory, and warning sign drills covered elsewhere. Finish this final signs session, then you will have covered every sign-related angle the California DMV puts in front of CDL permit candidates.

Keep going:

• California CDL Practice Test
• California Air Brakes Practice Test
• California CDL Combination Practice Test
• California CDL Pre-Trip Inspection Practice Test
• California Hazmat Practice Test
• California CDL Practice Test

Every question traces back to the California CDL Manual - skim the right-of-way and signs chapters before your retake.