Skip to content

Menu

ExamPassoLog in

Georgia DMV Permit Test: Warning, School, Railroad, and Work Zone Signs Concepts

Importance ★★★★★ · 35% (estimate)

Overview

Warning signs tell you about a hazard or a change in the road before you reach it, so you have time to slow down. This chapter covers yellow diamond warning signs, school signs, railroad crossing signs, the no passing pennant, and orange work zone signs.

Most warning signs are yellow diamonds with black words or symbols, and some are fluorescent yellow-green. A T shape means the road you are on ends and you must turn left or right. A merge sign shows traffic joining your road. A smoothly bending arrow means a curve, and a yellow plaque with a speed under the sign gives the advised safe speed for it.

Some warning signs use other shapes. The five-sided sign marks a school zone or school crossing. The round yellow sign warns of a railroad crossing ahead, and the white X-shaped crossbuck stands at the tracks themselves, sometimes with a plate showing how many tracks there are. The yellow pennant on the left side of the road marks the start of a no passing zone.

Orange signs mark work zones. In a work zone a flagger has the same authority as a regulatory sign, and you must yield to work vehicles with flashing amber lights. Speeding past a regulatory speed limit in a Georgia work zone can bring a fine of $100 to $2,000.

Key concepts

  • Yellow diamond

    The usual shape and color for warning signs. It warns of a hazard or a change ahead, such as a curve, a merge, a road that ends, or a slippery road. Some warning signs are fluorescent yellow-green.

    Memory tipYellow diamond: something is coming, slow down.

    Source: Manual on Uniform Traffic Control Devices (FHWA) · as of 2023

  • Advisory speed plaque

    A yellow plaque with a speed, placed under a warning sign. It shows the advised safe speed for that curve or hazard, which is usually lower than the speed limit.

    Memory tipYellow number under a curve sign: slow to that speed.

  • School sign

    The five-sided (pentagon) sign marks a school zone or school crossing. It may be yellow or fluorescent yellow-green.

    Memory tipFive sides, like a schoolhouse.

    Source: Manual on Uniform Traffic Control Devices (FHWA) · as of 2023

  • Railroad signs

    The round yellow sign warns that a railroad crossing is ahead. The white crossbuck stands at the crossing, where you must yield to trains. A plate under the crossbuck may show the number of tracks.

    Memory tipRound sign: tracks ahead. Crossbuck: tracks here.

  • No passing pennant

    A yellow sign shaped like a sideways triangle, placed on the left side of the road. It marks the beginning of a no passing zone, so finish any pass before you reach it.

    Memory tipPennant on the left: no passing from here.

  • Work zones

    Orange signs mark construction and maintenance work. A flagger has the same authority as a regulatory sign. Yield to work vehicles with flashing amber lights. Speeding past a regulatory work zone speed limit can bring a fine of $100 to $2,000.

    Memory tipOrange means workers: slow down and obey the flagger.

    Source: Georgia DDS Drivers' Manual (Highway Work Zones) · as of 2026

  • Slow-moving vehicle emblem

    An orange triangle with a red border on the back of a vehicle. In Georgia it marks a vehicle that moves at less than 25 mph, such as farm equipment.

    Memory tipOrange triangle on a tractor: slow down early.

    Source: Georgia DDS Drivers' Manual (Signs, Signals and Markings) · as of 2026

See it in a picture

Three labeled railroad crossing devices: a round yellow sign with a black X and two R letters, a white X-shaped crossbuck reading RAILROAD CROSSING with a 2 TRACKS plate below it, and a large white X with two R letters painted on a gray road lane.
The round sign and the painted X warn you before the tracks; the crossbuck stands at the tracks.

Often tested

  • Diamond-shaped signs warn of hazards or changes ahead.
  • A T-shaped symbol means your road ends; get ready to turn left or right.
  • The five-sided sign means a school zone or school crossing.
  • The round yellow sign means a railroad crossing is ahead.
  • The pennant on the left side of the road starts a no passing zone.
  • In a work zone, obey flaggers just as you obey regulatory signs.

Easy to confuse: Railroad crossing signs and markings

Sign or markingWhere you see itWhat it tells you
Round yellow sign with X and RRBefore the crossingA railroad crossing is ahead
X and RR painted on the roadOn the pavement before the crossingA railroad crossing is ahead
White X-shaped crossbuckAt the crossingYield to trains; a plate may show the number of tracks

3 sample questions

Verified practice questions from this unit.

Practice questionReviewedRoad Signs › Warning, School, Railroad, and Work Zone Signs★★★★★

Question 1. What do diamond-shaped signs tell you?

  1. ① A school crossing is ahead
  2. ② You must stop at the next corner
  3. ③ A hazard or change in the road may be ahead
  4. ④ A railroad crossing is ahead
▼ Show answer and explanation▲ Hide answer and explanation

Answer: ③ A hazard or change in the road may be ahead

Key point: Diamond = warning of a hazard ahead

Diamond-shaped signs are warning signs. They are usually yellow with black words or symbols and tell you about a possible hazard ahead, such as a curve, a merge, or a narrow bridge.

Wrong choices

  • A school crossing is ahead: School zones and crossings use a five-sided sign.
  • You must stop at the next corner: A required stop is shown by the eight-sided STOP sign.
  • A railroad crossing is ahead: The advance railroad crossing sign is round.
Practice questionReviewedRoad Signs › Warning, School, Railroad, and Work Zone Signs★★★★★

Question 2. What does a five-sided (pentagon) sign mean?

  1. ① A no passing zone begins
  2. ② You are near a school zone or school crossing
  3. ③ A railroad crossing is ahead
  4. ④ A hospital zone begins
▼ Show answer and explanation▲ Hide answer and explanation

Answer: ② You are near a school zone or school crossing

Key point: Five sides = school zone or crossing

The five-sided (pentagon) sign marks a school zone or school crossing. It may be yellow or fluorescent yellow-green. Slow down and watch for children.

Wrong choices

  • A no passing zone begins: The start of a no passing zone is marked by a sideways triangle (pennant).
  • A railroad crossing is ahead: The railroad advance warning sign is round.
  • A hospital zone begins: Hospitals are shown on blue service signs.
Practice questionReviewedRoad Signs › Warning, School, Railroad, and Work Zone Signs★★★★★

Question 3. What does a round yellow sign with a black X and two R letters warn you about?

  1. ① A roundabout is ahead
  2. ② A rest area is ahead
  3. ③ Road repair work is ahead
  4. ④ A railroad crossing is ahead
▼ Show answer and explanation▲ Hide answer and explanation

Answer: ④ A railroad crossing is ahead

Key point: Round yellow sign = railroad crossing ahead

The round yellow sign is the railroad advance warning sign. It is posted a few hundred feet before the tracks. Slow down, look, listen, and be ready to stop for a train.

Wrong choices

  • A roundabout is ahead: A roundabout ahead is shown on a yellow diamond with circling arrows.
  • A rest area is ahead: Rest areas are shown on blue or green guide signs.
  • Road repair work is ahead: Road work is marked with orange signs.
Practice 5 questions from this unit →

AI-written · Verified · Written by AI. Only units that passed a separate AI check (re-reading facts and numbers) are published. Tell us if you find a mistake.