Illinois CDL Traffic Signals & Road Markings Test 2026

Signs are only part of the system. The Illinois CDL signals and markings test covers the other part - traffic signals and the paint on the road. This 2026 Illinois CDL practice drill runs through steady and flashing red, yellow, and green, green arrows and protected turns, the stale green that is about to change under a truck that cannot stop quickly, lane-use signals, ramp meters, and pedestrian and railroad signals.

Pavement markings get equal attention: solid and broken yellow center lines and what passing rules follow from each, white lane lines, edge lines, stop lines and crosswalks, turn arrows, HOV markings, and the yellow box you do not stop inside. Reflective markers and temporary construction striping also come up, and Illinois winters can leave markings hidden under snow when you need them most.

These questions belong to the written exam the Illinois Secretary of State administers. Work this Illinois CDL signals and markings practice test alongside the Illinois CDL Manual.

Keep going:

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

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