Intersections are where drivers' paths cross, and where a moment of inattention produces the most violent crashes on surface streets. A car running a red light on Far Hills Avenue or turning left across traffic on Wilmington Pike hits the side of your vehicle, where nothing separates you from the other car except a door. The injuries from these "T-bone" collisions are among the worst we see, and the disputes about fault are the most common: each driver says they had the green light. This page explains Ohio's right-of-way rules, how we prove what happened, how shared fault works, and when a badly designed or maintained intersection makes a city, county, or the state responsible too.

Ohio's right-of-way rules

Ohio's traffic code assigns the right-of-way at intersections through a series of statutes. When a driver violates one of them and causes a crash, that violation is strong evidence of negligence.

Uncontrolled intersections: R.C. 4511.41. When two vehicles approach or enter an intersection from different streets at about the same time, the driver on the left must yield to the driver on the right. This rule governs residential intersections with no signs or signals, and the statute notes it is modified at through highways and elsewhere in the code.

Left turns: R.C. 4511.42. A driver turning left within an intersection, or into an alley, private road, or driveway, must yield to any vehicle approaching from the opposite direction that is "so close ... as to constitute an immediate hazard." A driver who turns left in front of oncoming traffic is nearly always at fault, and a motorcyclist on the receiving end is often catastrophically hurt.

Stop signs and yield signs: R.C. 4511.43. A driver approaching a stop sign must stop at the marked line, or before the crosswalk, or at the point with a view of cross traffic, and after stopping must yield to any vehicle in the intersection or approaching "so closely as to constitute an immediate hazard." At a yield sign, the driver must slow and, if necessary, stop, then yield. The statute adds a rule that helps injured people: if a driver passes a yield sign without stopping and collides with a vehicle in the intersection, the collision itself "shall be prima-facie evidence" of failure to yield.

Entering from a driveway or parking lot: R.C. 4511.44. A driver entering or crossing a road from anywhere other than another road, such as a driveway, parking lot, or alley, must yield to all traffic on the road being entered. The driver pulling out of the gas station or shopping center is the one who must wait.

Traffic signals: R.C. 4511.13. This section defines what each signal means. A steady green allows a driver to proceed, but a driver turning left on a circular green must still yield to oncoming traffic that is close enough to be an immediate hazard. A steady yellow warns that the green is ending and that a red will follow. A steady red requires a full stop at the line until a signal to proceed appears. A green arrow permits only the movement shown. A flashing yellow arrow permits a left turn only after yielding to oncoming traffic.

These rules matter because insurers cannot argue that their driver was being "reasonable" in the abstract. The law says who goes and who waits, and a driver who violates it and causes a crash is negligent.

Why T-bone and side-impact crashes are so dangerous

The front and rear of a car are built to crumple and absorb energy. The side is not. The injuries we see from side-impact crashes include traumatic brain injury from the head striking the window or pillar, broken ribs and pelvis, internal organ injuries, spinal fractures, and severe arm and shoulder injuries on the struck side. Children in the rear seat on that side are especially vulnerable. These are the cases where Ohio's cap on noneconomic damages may not apply because the injury is permanent and substantial, as we explain in our chapter on what your case is worth.

"I had the green light": how we prove it

In an intersection crash, fault is almost always disputed. Both drivers believe they had the right-of-way, and the officer who arrives afterward did not see the collision. If the report says "both drivers claim green," the other driver's insurer will deny the claim and wait for you to go away. We do not go away. The sources of proof in a signal dispute include:

Signal timing records. Every traffic signal runs on a programmed cycle maintained by the city, the county engineer, or the Ohio Department of Transportation. The timing plan shows how long each phase lasts and the sequence of greens, yellows, and reds for each approach. Many modern signals log their actual operation. Combined with the time of the crash from a 911 call or a vehicle's data, the records can establish which direction had green.

Intersection and traffic cameras. Many Dayton-area intersections have cameras used for traffic monitoring, and nearby businesses have surveillance systems pointed at the street. The footage is frequently overwritten within days, so a written preservation request must go out immediately.

Witnesses. Drivers behind you, pedestrians, and people at nearby businesses often saw the light. Witness names are sometimes on the crash report and sometimes not. We track them down and take statements while memories are fresh.

Event data recorders. Most vehicles built in the last fifteen years record speed, throttle, braking, and steering in the seconds before a crash. If the other driver was accelerating through the intersection when the light had been red for three seconds, the data shows it.

Crash reconstruction. For serious injury cases, we retain a reconstruction expert who uses skid marks, crush damage, final rest positions, and the intersection's geometry to calculate speeds and establish the sequence of events. I spent 19 years working crash scenes as a Dayton police officer, and I know what a reconstruction should show.

Phone records. If the other driver was texting, the phone record places a message at the moment of the crash. See our distracted driving page for how we obtain them.

Our chapter on gathering evidence while it still exists explains what you can do in the first days. The most important step is to call quickly, so preservation letters go out before the footage is gone.

Comparative fault at intersections

Ohio's modified comparative negligence statute, R.C. 2315.33, reduces your recovery by your percentage of fault and bars recovery entirely if your fault is greater than the combined fault of everyone else. In an intersection case, the insurer's goal is to push your share toward 51 percent.

Common arguments: you were speeding, you entered on a stale yellow, you did not look before proceeding on green. Some have a factual basis; many do not. A driver proceeding on green is entitled to assume cross traffic will stop, and the right-of-way statutes put the burden on the driver who must yield. We develop the evidence to defeat the argument and present the case so fault is allocated where it belongs.

Dangerous intersections and claims against the government

Some intersections produce crash after crash because of how they are built or maintained: a stop sign hidden by overgrown brush, a signal that is not visible until the last moment, a sight line blocked by a wall or embankment, a yellow phase too short for the posted speed, a missing or faded stop bar, or a malfunctioning signal showing conflicting indications.

Ohio cities, counties, and townships are generally immune from lawsuits, but the immunity has exceptions. R.C. 2744.02(B)(3) makes a political subdivision liable for injury "caused by their negligent failure to keep public roads in repair and other negligent failure to remove obstructions from public roads." Whether a particular defect fits that exception is a complex question, the deadlines are strict, and the state itself must be sued in the Court of Claims. We explain the framework on our page about claims against the government.

If the intersection where you were hurt has a reputation, if neighbors say "there is always a crash there," tell us. We obtain the crash history and the maintenance records for the signals and signs and evaluate whether the public entity shares responsibility.

Intersections and pedestrians

Intersection crashes do not only involve two cars. Drivers turning right on red, turning left on a circular green, or running a signal strike people in crosswalks constantly. R.C. 4511.13 requires a driver on green or a green arrow to yield to pedestrians lawfully in the crosswalk. We cover these cases on our pedestrian and crosswalk injuries page.

What to do after an intersection crash

Call 911 and ask for police. Photograph the vehicles, the signals, the signs, and the sight lines from each approach. Get the names of witnesses, including people who stopped and left before the officer arrived. Get medical care the same day. Do not tell the other driver's insurer what color your light was; tell your lawyer. For damages and the two-year statute of limitations, see our car and truck accidents page.

Frequently asked questions

The police report says both of us claimed a green light. Is my case dead?

No. The report records what the drivers said; it does not decide the case. Signal timing records, camera footage, witnesses, and vehicle data frequently resolve the dispute. The sooner we start, the more of that evidence still exists.

The other driver got a ticket. Does that win my case?

It helps. A citation and especially a conviction for a right-of-way violation are strong evidence. It does not end the case, because the insurer can still argue comparative fault and will still contest your damages.

I was turning left on a green light and got hit. Am I at fault?

Under R.C. 4511.42 and R.C. 4511.13, a driver turning left on a circular green must yield to oncoming traffic that is close enough to be an immediate hazard. That usually puts fault on the turning driver, but not always: if the oncoming driver was far enough away that the turn was safe and then sped up or ran a red, the analysis changes. The facts and the physical evidence decide.

The other driver pulled out of a parking lot in front of me. Who is at fault?

A driver entering a road from a parking lot, driveway, or alley must yield to all traffic on the road under R.C. 4511.44. The driver who pulled out is almost always responsible.

Can I sue the city if the intersection was dangerous?

Sometimes. R.C. 2744.02(B)(3) allows claims for negligent failure to keep roads in repair and to remove obstructions, but immunity rules are complicated and the exceptions are narrow. Tell us about the intersection and we will evaluate it. Do not wait; government claims have their own timing requirements.

This article is general information about Ohio law, not legal advice about your situation. Reading it does not create an attorney-client relationship. Deadlines and rules change; talk to a lawyer about your specific case.