When you approach an intersection, start scanning early, ease off the accelerator, signal any turn or lane change, identify what controls the intersection (a light, a sign, or nothing at all), and yield according to the rule that applies before you cross the stop line. Roughly a quarter of U.S. traffic fatalities and about half of all traffic injuries happen at intersections, and most of those crashes trace back to a driver who failed to yield, misjudged a gap, or wasn’t paying attention.1Federal Highway Administration. About Intersection Safety The next few seconds are where almost everything is decided.
Scan, Slow, and Signal
Good intersection driving starts well before the stop line. Look left, right, and ahead early enough to spot pedestrians stepping off curbs, cyclists in bike lanes, and vehicles that don’t look like they’re going to stop. Check your mirrors and blind spots, especially if you need to change lanes.
Reduce speed as you get closer. Coasting in at full speed leaves almost no reaction time if something goes wrong. Signal early so drivers behind and beside you know what you plan to do, and if you’re turning, move into the correct lane before you arrive instead of cutting across at the last moment.
One habit separates cautious drivers from everyone else: assume the other person might not follow the rules. A green light means you’re legally allowed to go; it doesn’t guarantee cross-traffic has actually stopped. A quick glance both ways before entering, even on green, catches the occasional red-light runner before it becomes a collision.
Reading What Controls the Intersection
Traffic Lights
A solid green means you may proceed, but you still have to yield to any vehicles or pedestrians finishing their crossing inside the intersection. A solid yellow warns that red is coming. Stop if you can do so safely; if you’re already too close and stopping would be dangerous, continue through with caution. In 2023, red-light running crashes killed over 1,000 people and injured more than 135,000, so treating a stale yellow as permission to accelerate carries real risk.2Insurance Institute for Highway Safety. Red Light Running
A solid red requires a complete stop before the stop line or crosswalk, and you stay stopped until it turns green. A red arrow works the same way but applies specifically to the turn it points to. A flashing red functions like a stop sign: full stop, yield to cross-traffic and pedestrians, proceed when clear. A flashing yellow means slow down and proceed with caution. A flashing yellow arrow signals a permissive left turn, so you may turn left only after yielding to oncoming traffic and pedestrians.3Federal Highway Administration. Interim Approval for Optional Use of Flashing Yellow Arrow for Permissive Left Turns
Right on red is legal in all 50 states unless a sign prohibits it. Come to a complete stop first, yield to pedestrians in the crosswalk and vehicles with a green light, then turn only when there’s a safe gap. Rolling through without a true stop is one of the most commonly ticketed intersection violations.
Stop Signs and Yield Signs
At a stop sign, come to a complete stop before the limit line, crosswalk, or the point where you can see cross-traffic. Rolling through, even slowly, counts as running the sign. At a two-way stop, drivers facing the signs yield to all cross-traffic on the uncontrolled road. At a four-way stop, the first vehicle to come to a complete stop goes first; if two drivers stop at the same time, the one on the left yields to the one on the right. When in doubt, make eye contact and wave the other driver through instead of both creeping forward.
A yield sign doesn’t require a full stop, but you have to slow enough to give the right-of-way to cross-traffic and pedestrians. If the way is clear, you can proceed. If it isn’t, treat the yield sign like a stop sign until a safe gap opens.
Uncontrolled Intersections
Uncontrolled intersections have no lights or signs and are common in residential and rural areas. The driver who arrives first goes first; when two vehicles arrive at the same time, the one on the left yields to the one on the right. A driver turning left always yields to oncoming traffic going straight or turning right, and anyone already in the intersection has priority.
At a T-intersection, the standard “yield to the right” rule doesn’t quite apply. The driver on the terminating road, the one that dead-ends into the cross street, yields to traffic on the through road. You’re joining the natural flow, so you wait for a gap the way you would when merging.
Roundabouts
In a roundabout, traffic flows counterclockwise around a central island. Converting a traditional intersection to a roundabout reduces fatal and serious-injury crashes by roughly 78 to 82 percent.4Federal Highway Administration. Roundabouts – Proven Safety Countermeasures The core rule is simple: yield to traffic already in the circle before you enter. Once inside, don’t stop unless traffic ahead of you forces you to. Use your right turn signal as you approach your exit. If you miss it, go around again rather than stopping or backing up. In a multi-lane roundabout, pick your lane before entering by following the posted signs; generally the right lane handles right turns and straight-through moves, and the left lane handles left turns and U-turns.
Right-of-Way at a Glance
A handful of yielding rules cover most situations:
- Vehicles already in the intersection have priority over anyone entering.
- Pedestrians in a crosswalk, marked or unmarked, have priority over turning and crossing vehicles.
- At a four-way stop, first to stop goes first; ties go to the driver on the right.
- A left-turning driver yields to oncoming traffic going straight or turning right.
- At a T-intersection, the terminating road yields to the through road.
- Entering a roundabout, yield to traffic already circulating.
Making the Turn
For a right turn, signal early and position your vehicle close to the right edge of the road. Before turning, check for pedestrians in the crosswalk and cyclists in the bike lane. A cyclist going straight has the right-of-way over a vehicle turning across their path, and cyclists are easy to miss if you only check mirrors. Complete the turn into the nearest right lane.
For a left turn, signal and move into the designated left-turn lane or as far left as the roadway allows. Yield to all oncoming traffic and pedestrians before starting the turn. While waiting, keep your wheels pointed straight ahead. If someone rear-ends you with your wheels cranked left, the impact pushes you directly into oncoming traffic.
Don’t enter an intersection to wait for a left-turn gap unless you can see conditions will let you complete the turn. If you’re already past the stop line when the light changes to yellow, finish the turn rather than sitting through a red.
Pedestrians and Cyclists
Drivers must yield to pedestrians in crosswalks, marked or unmarked. An unmarked crosswalk exists at virtually every intersection where sidewalks or paths meet the road, even if no paint is visible. Yield well back from the crosswalk so other vehicles can see the pedestrian and stop too.5National Highway Traffic Safety Administration. Pedestrian Safety
Never pass a vehicle stopped at a crosswalk. That driver stopped for a reason, and the pedestrian hidden behind the vehicle won’t expect you to come past in the next lane.5National Highway Traffic Safety Administration. Pedestrian Safety This is one of the most common and most preventable ways pedestrians are killed at intersections.
Cyclists follow the same traffic laws as motor vehicles and can legally occupy a full lane. Give them space when passing, and check your right mirror and blind spot before turning right.
Special Situations
A dark or malfunctioning signal should be treated as an all-way stop. Every driver approaching must stop completely, then proceed using the right-of-way rules for a four-way stop. Slow down well in advance and expect other drivers to be unsure.
When an emergency vehicle approaches with flashing lights and sirens, every state requires you to move over and yield.6National Highway Traffic Safety Administration. Move Over – Its the Law Signal, pull as far to the right as you safely can, and stop, regardless of which direction the vehicle is coming from. If you’re in the middle of an intersection when you hear sirens, clear the intersection first and then pull over; stopping inside it blocks the path the emergency vehicle needs.
Railroad crossings near intersections call for extra caution. When warning lights are flashing, gates are lowered, or a train is approaching, stop at least 15 feet from the nearest rail.7National Highway Traffic Safety Administration. Train and Railroad Crossing Safety for Drivers A freight train at 55 mph needs more than a mile to stop, so don’t try to beat one. Don’t proceed until the gates are fully raised, the lights have stopped flashing, and you can see clearly in both directions. If traffic is backed up past a crossing, wait until there’s room on the far side for your whole vehicle before pulling forward.
What a Violation Costs
Running a red light, ignoring a stop sign, or failing to yield right-of-way will almost certainly result in a citation. Fines for a first-time failure-to-yield violation typically range from around $85 to $1,000 depending on your jurisdiction, and most states add points to your license. Enough points within a set period leads to suspension.
The costs don’t stop at the ticket. Points usually trigger higher insurance premiums for years. If your violation causes a crash, you face civil liability for the other driver’s medical bills and vehicle damage, plus the possibility of criminal charges like reckless driving if your behavior was especially dangerous. In most states, reckless driving is a misdemeanor that can carry jail time and fines well above a standard traffic ticket. Intersection crashes accounted for more than 12,000 traffic fatalities in 2022, with unsignalized intersections proving even deadlier than signalized ones.1Federal Highway Administration. About Intersection Safety